To sort things into groups by what they have in common.
🔊 Hear definition Select a word… Classify Communicate Compare Conclude Data Design Cycle Engineer Evidence Infer Interpret Investigate Justify Measure Observe Organize Predict / Hypothesis Question Record Relate Science Acidic Acidity Alkalinity Atoms Basic Changes in Matter Chemical Equation Compounds Conservation of Mass Elements Families Groups Indicator Litmus Paper Metals Mixtures Molecules Neutral Noble Gases Non-Metals Periodic Table of Elements Periods pH pH Scale Phase Change Phenolphthalein Properties Options shuffled
To share ideas, results, or information with others.
🔊 Hear definition Select a word… Classify Communicate Compare Conclude Data Design Cycle Engineer Evidence Infer Interpret Investigate Justify Measure Observe Organize Predict / Hypothesis Question Record Relate Science Acidic Acidity Alkalinity Atoms Basic Changes in Matter Chemical Equation Compounds Conservation of Mass Elements Families Groups Indicator Litmus Paper Metals Mixtures Molecules Neutral Noble Gases Non-Metals Periodic Table of Elements Periods pH pH Scale Phase Change Phenolphthalein Properties Options shuffled
To look at how two or more things are alike and different.
🔊 Hear definition Select a word… Classify Communicate Compare Conclude Data Design Cycle Engineer Evidence Infer Interpret Investigate Justify Measure Observe Organize Predict / Hypothesis Question Record Relate Science Acidic Acidity Alkalinity Atoms Basic Changes in Matter Chemical Equation Compounds Conservation of Mass Elements Families Groups Indicator Litmus Paper Metals Mixtures Molecules Neutral Noble Gases Non-Metals Periodic Table of Elements Periods pH pH Scale Phase Change Phenolphthalein Properties Options shuffled
To decide something based on evidence.
🔊 Hear definition Select a word… Classify Communicate Compare Conclude Data Design Cycle Engineer Evidence Infer Interpret Investigate Justify Measure Observe Organize Predict / Hypothesis Question Record Relate Science Acidic Acidity Alkalinity Atoms Basic Changes in Matter Chemical Equation Compounds Conservation of Mass Elements Families Groups Indicator Litmus Paper Metals Mixtures Molecules Neutral Noble Gases Non-Metals Periodic Table of Elements Periods pH pH Scale Phase Change Phenolphthalein Properties Options shuffled
Observations or measurements collected to investigate a question.
🔊 Hear definition Select a word… Classify Communicate Compare Conclude Data Design Cycle Engineer Evidence Infer Interpret Investigate Justify Measure Observe Organize Predict / Hypothesis Question Record Relate Science Acidic Acidity Alkalinity Atoms Basic Changes in Matter Chemical Equation Compounds Conservation of Mass Elements Families Groups Indicator Litmus Paper Metals Mixtures Molecules Neutral Noble Gases Non-Metals Periodic Table of Elements Periods pH pH Scale Phase Change Phenolphthalein Properties Options shuffled
A process engineers use: plan a solution, build and test it, then use what you learn to improve it.
🔊 Hear definition Select a word… Classify Communicate Compare Conclude Data Design Cycle Engineer Evidence Infer Interpret Investigate Justify Measure Observe Organize Predict / Hypothesis Question Record Relate Science Acidic Acidity Alkalinity Atoms Basic Changes in Matter Chemical Equation Compounds Conservation of Mass Elements Families Groups Indicator Litmus Paper Metals Mixtures Molecules Neutral Noble Gases Non-Metals Periodic Table of Elements Periods pH pH Scale Phase Change Phenolphthalein Properties Options shuffled
A person who uses science and math to design and build solutions to problems.
🔊 Hear definition Select a word… Classify Communicate Compare Conclude Data Design Cycle Engineer Evidence Infer Interpret Investigate Justify Measure Observe Organize Predict / Hypothesis Question Record Relate Science Acidic Acidity Alkalinity Atoms Basic Changes in Matter Chemical Equation Compounds Conservation of Mass Elements Families Groups Indicator Litmus Paper Metals Mixtures Molecules Neutral Noble Gases Non-Metals Periodic Table of Elements Periods pH pH Scale Phase Change Phenolphthalein Properties Options shuffled
Observations or measurements used to support or question a claim or explanation.
🔊 Hear definition Select a word… Classify Communicate Compare Conclude Data Design Cycle Engineer Evidence Infer Interpret Investigate Justify Measure Observe Organize Predict / Hypothesis Question Record Relate Science Acidic Acidity Alkalinity Atoms Basic Changes in Matter Chemical Equation Compounds Conservation of Mass Elements Families Groups Indicator Litmus Paper Metals Mixtures Molecules Neutral Noble Gases Non-Metals Periodic Table of Elements Periods pH pH Scale Phase Change Phenolphthalein Properties Options shuffled
To decide something from clues and evidence.
🔊 Hear definition Select a word… Classify Communicate Compare Conclude Data Design Cycle Engineer Evidence Infer Interpret Investigate Justify Measure Observe Organize Predict / Hypothesis Question Record Relate Science Acidic Acidity Alkalinity Atoms Basic Changes in Matter Chemical Equation Compounds Conservation of Mass Elements Families Groups Indicator Litmus Paper Metals Mixtures Molecules Neutral Noble Gases Non-Metals Periodic Table of Elements Periods pH pH Scale Phase Change Phenolphthalein Properties Options shuffled
To figure out what information means.
🔊 Hear definition Select a word… Classify Communicate Compare Conclude Data Design Cycle Engineer Evidence Infer Interpret Investigate Justify Measure Observe Organize Predict / Hypothesis Question Record Relate Science Acidic Acidity Alkalinity Atoms Basic Changes in Matter Chemical Equation Compounds Conservation of Mass Elements Families Groups Indicator Litmus Paper Metals Mixtures Molecules Neutral Noble Gases Non-Metals Periodic Table of Elements Periods pH pH Scale Phase Change Phenolphthalein Properties Options shuffled
To study something carefully to find out about it.
🔊 Hear definition Select a word… Classify Communicate Compare Conclude Data Design Cycle Engineer Evidence Infer Interpret Investigate Justify Measure Observe Organize Predict / Hypothesis Question Record Relate Science Acidic Acidity Alkalinity Atoms Basic Changes in Matter Chemical Equation Compounds Conservation of Mass Elements Families Groups Indicator Litmus Paper Metals Mixtures Molecules Neutral Noble Gases Non-Metals Periodic Table of Elements Periods pH pH Scale Phase Change Phenolphthalein Properties Options shuffled
To explain the reasons behind a claim, using evidence to back it up.
🔊 Hear definition Select a word… Classify Communicate Compare Conclude Data Design Cycle Engineer Evidence Infer Interpret Investigate Justify Measure Observe Organize Predict / Hypothesis Question Record Relate Science Acidic Acidity Alkalinity Atoms Basic Changes in Matter Chemical Equation Compounds Conservation of Mass Elements Families Groups Indicator Litmus Paper Metals Mixtures Molecules Neutral Noble Gases Non-Metals Periodic Table of Elements Periods pH pH Scale Phase Change Phenolphthalein Properties Options shuffled
To find the size or amount of something using a tool.
🔊 Hear definition Select a word… Classify Communicate Compare Conclude Data Design Cycle Engineer Evidence Infer Interpret Investigate Justify Measure Observe Organize Predict / Hypothesis Question Record Relate Science Acidic Acidity Alkalinity Atoms Basic Changes in Matter Chemical Equation Compounds Conservation of Mass Elements Families Groups Indicator Litmus Paper Metals Mixtures Molecules Neutral Noble Gases Non-Metals Periodic Table of Elements Periods pH pH Scale Phase Change Phenolphthalein Properties Options shuffled
To use your senses or tools to notice details.
🔊 Hear definition Select a word… Classify Communicate Compare Conclude Data Design Cycle Engineer Evidence Infer Interpret Investigate Justify Measure Observe Organize Predict / Hypothesis Question Record Relate Science Acidic Acidity Alkalinity Atoms Basic Changes in Matter Chemical Equation Compounds Conservation of Mass Elements Families Groups Indicator Litmus Paper Metals Mixtures Molecules Neutral Noble Gases Non-Metals Periodic Table of Elements Periods pH pH Scale Phase Change Phenolphthalein Properties Options shuffled
To arrange things in a clear order.
🔊 Hear definition Select a word… Classify Communicate Compare Conclude Data Design Cycle Engineer Evidence Infer Interpret Investigate Justify Measure Observe Organize Predict / Hypothesis Question Record Relate Science Acidic Acidity Alkalinity Atoms Basic Changes in Matter Chemical Equation Compounds Conservation of Mass Elements Families Groups Indicator Litmus Paper Metals Mixtures Molecules Neutral Noble Gases Non-Metals Periodic Table of Elements Periods pH pH Scale Phase Change Phenolphthalein Properties Options shuffled
A prediction states an expected outcome. A hypothesis is a proposed explanation that can be tested with evidence.
🔊 Hear definition Select a word… Classify Communicate Compare Conclude Data Design Cycle Engineer Evidence Infer Interpret Investigate Justify Measure Observe Organize Predict / Hypothesis Question Record Relate Science Acidic Acidity Alkalinity Atoms Basic Changes in Matter Chemical Equation Compounds Conservation of Mass Elements Families Groups Indicator Litmus Paper Metals Mixtures Molecules Neutral Noble Gases Non-Metals Periodic Table of Elements Periods pH pH Scale Phase Change Phenolphthalein Properties Options shuffled
A request for information that can guide an investigation.
🔊 Hear definition Select a word… Classify Communicate Compare Conclude Data Design Cycle Engineer Evidence Infer Interpret Investigate Justify Measure Observe Organize Predict / Hypothesis Question Record Relate Science Acidic Acidity Alkalinity Atoms Basic Changes in Matter Chemical Equation Compounds Conservation of Mass Elements Families Groups Indicator Litmus Paper Metals Mixtures Molecules Neutral Noble Gases Non-Metals Periodic Table of Elements Periods pH pH Scale Phase Change Phenolphthalein Properties Options shuffled
To write down what you see or measure.
🔊 Hear definition Select a word… Classify Communicate Compare Conclude Data Design Cycle Engineer Evidence Infer Interpret Investigate Justify Measure Observe Organize Predict / Hypothesis Question Record Relate Science Acidic Acidity Alkalinity Atoms Basic Changes in Matter Chemical Equation Compounds Conservation of Mass Elements Families Groups Indicator Litmus Paper Metals Mixtures Molecules Neutral Noble Gases Non-Metals Periodic Table of Elements Periods pH pH Scale Phase Change Phenolphthalein Properties Options shuffled
To find and explain a connection between two or more ideas.
🔊 Hear definition Select a word… Classify Communicate Compare Conclude Data Design Cycle Engineer Evidence Infer Interpret Investigate Justify Measure Observe Organize Predict / Hypothesis Question Record Relate Science Acidic Acidity Alkalinity Atoms Basic Changes in Matter Chemical Equation Compounds Conservation of Mass Elements Families Groups Indicator Litmus Paper Metals Mixtures Molecules Neutral Noble Gases Non-Metals Periodic Table of Elements Periods pH pH Scale Phase Change Phenolphthalein Properties Options shuffled
A way of studying the natural world using observation, evidence, and testing.
🔊 Hear definition Select a word… Classify Communicate Compare Conclude Data Design Cycle Engineer Evidence Infer Interpret Investigate Justify Measure Observe Organize Predict / Hypothesis Question Record Relate Science Acidic Acidity Alkalinity Atoms Basic Changes in Matter Chemical Equation Compounds Conservation of Mass Elements Families Groups Indicator Litmus Paper Metals Mixtures Molecules Neutral Noble Gases Non-Metals Periodic Table of Elements Periods pH pH Scale Phase Change Phenolphthalein Properties Options shuffled
Describes a water-based solution with more hydrogen-ion activity than a neutral solution; its pH is below 7 at 25 °C.
🔊 Hear definition Select a word… Classify Communicate Compare Conclude Data Design Cycle Engineer Evidence Infer Interpret Investigate Justify Measure Observe Organize Predict / Hypothesis Question Record Relate Science Acidic Acidity Alkalinity Atoms Basic Changes in Matter Chemical Equation Compounds Conservation of Mass Elements Families Groups Indicator Litmus Paper Metals Mixtures Molecules Neutral Noble Gases Non-Metals Periodic Table of Elements Periods pH pH Scale Phase Change Phenolphthalein Properties Options shuffled
A solution’s ability to react as an acid; pH describes hydrogen-ion activity and does not by itself measure total acid content.
🔊 Hear definition Select a word… Classify Communicate Compare Conclude Data Design Cycle Engineer Evidence Infer Interpret Investigate Justify Measure Observe Organize Predict / Hypothesis Question Record Relate Science Acidic Acidity Alkalinity Atoms Basic Changes in Matter Chemical Equation Compounds Conservation of Mass Elements Families Groups Indicator Litmus Paper Metals Mixtures Molecules Neutral Noble Gases Non-Metals Periodic Table of Elements Periods pH pH Scale Phase Change Phenolphthalein Properties Options shuffled
The capacity of water to neutralize added acid; it is different from pH.
🔊 Hear definition Select a word… Classify Communicate Compare Conclude Data Design Cycle Engineer Evidence Infer Interpret Investigate Justify Measure Observe Organize Predict / Hypothesis Question Record Relate Science Acidic Acidity Alkalinity Atoms Basic Changes in Matter Chemical Equation Compounds Conservation of Mass Elements Families Groups Indicator Litmus Paper Metals Mixtures Molecules Neutral Noble Gases Non-Metals Periodic Table of Elements Periods pH pH Scale Phase Change Phenolphthalein Properties Options shuffled
The smallest unit of an element that keeps that element’s chemical identity.
🔊 Hear definition Select a word… Classify Communicate Compare Conclude Data Design Cycle Engineer Evidence Infer Interpret Investigate Justify Measure Observe Organize Predict / Hypothesis Question Record Relate Science Acidic Acidity Alkalinity Atoms Basic Changes in Matter Chemical Equation Compounds Conservation of Mass Elements Families Groups Indicator Litmus Paper Metals Mixtures Molecules Neutral Noble Gases Non-Metals Periodic Table of Elements Periods pH pH Scale Phase Change Phenolphthalein Properties Options shuffled
Describes a water-based solution with a pH above the neutral value, which is 7 at 25 °C.
🔊 Hear definition Select a word… Classify Communicate Compare Conclude Data Design Cycle Engineer Evidence Infer Interpret Investigate Justify Measure Observe Organize Predict / Hypothesis Question Record Relate Science Acidic Acidity Alkalinity Atoms Basic Changes in Matter Chemical Equation Compounds Conservation of Mass Elements Families Groups Indicator Litmus Paper Metals Mixtures Molecules Neutral Noble Gases Non-Metals Periodic Table of Elements Periods pH pH Scale Phase Change Phenolphthalein Properties Options shuffled
How matter can change form: a physical change alters shape or state without making a new substance, while a chemical change creates a new substance entirely.
🔊 Hear definition Select a word… Classify Communicate Compare Conclude Data Design Cycle Engineer Evidence Infer Interpret Investigate Justify Measure Observe Organize Predict / Hypothesis Question Record Relate Science Acidic Acidity Alkalinity Atoms Basic Changes in Matter Chemical Equation Compounds Conservation of Mass Elements Families Groups Indicator Litmus Paper Metals Mixtures Molecules Neutral Noble Gases Non-Metals Periodic Table of Elements Periods pH pH Scale Phase Change Phenolphthalein Properties Options shuffled
A short way to write a chemical reaction using symbols, showing what you start with and what forms.
🔊 Hear definition Select a word… Classify Communicate Compare Conclude Data Design Cycle Engineer Evidence Infer Interpret Investigate Justify Measure Observe Organize Predict / Hypothesis Question Record Relate Science Acidic Acidity Alkalinity Atoms Basic Changes in Matter Chemical Equation Compounds Conservation of Mass Elements Families Groups Indicator Litmus Paper Metals Mixtures Molecules Neutral Noble Gases Non-Metals Periodic Table of Elements Periods pH pH Scale Phase Change Phenolphthalein Properties Options shuffled
A substance made of two or more elements joined together chemically, like water (H₂O).
🔊 Hear definition Select a word… Classify Communicate Compare Conclude Data Design Cycle Engineer Evidence Infer Interpret Investigate Justify Measure Observe Organize Predict / Hypothesis Question Record Relate Science Acidic Acidity Alkalinity Atoms Basic Changes in Matter Chemical Equation Compounds Conservation of Mass Elements Families Groups Indicator Litmus Paper Metals Mixtures Molecules Neutral Noble Gases Non-Metals Periodic Table of Elements Periods pH pH Scale Phase Change Phenolphthalein Properties Options shuffled
The rule that matter is not created or destroyed in a change, so the total mass stays the same.
🔊 Hear definition Select a word… Classify Communicate Compare Conclude Data Design Cycle Engineer Evidence Infer Interpret Investigate Justify Measure Observe Organize Predict / Hypothesis Question Record Relate Science Acidic Acidity Alkalinity Atoms Basic Changes in Matter Chemical Equation Compounds Conservation of Mass Elements Families Groups Indicator Litmus Paper Metals Mixtures Molecules Neutral Noble Gases Non-Metals Periodic Table of Elements Periods pH pH Scale Phase Change Phenolphthalein Properties Options shuffled
A pure substance made of one kind of atom; chemical reactions cannot break it into simpler substances.
🔊 Hear definition Select a word… Classify Communicate Compare Conclude Data Design Cycle Engineer Evidence Infer Interpret Investigate Justify Measure Observe Organize Predict / Hypothesis Question Record Relate Science Acidic Acidity Alkalinity Atoms Basic Changes in Matter Chemical Equation Compounds Conservation of Mass Elements Families Groups Indicator Litmus Paper Metals Mixtures Molecules Neutral Noble Gases Non-Metals Periodic Table of Elements Periods pH pH Scale Phase Change Phenolphthalein Properties Options shuffled
A column on the periodic table. Elements in the same column have similar properties.
🔊 Hear definition Select a word… Classify Communicate Compare Conclude Data Design Cycle Engineer Evidence Infer Interpret Investigate Justify Measure Observe Organize Predict / Hypothesis Question Record Relate Science Acidic Acidity Alkalinity Atoms Basic Changes in Matter Chemical Equation Compounds Conservation of Mass Elements Families Groups Indicator Litmus Paper Metals Mixtures Molecules Neutral Noble Gases Non-Metals Periodic Table of Elements Periods pH pH Scale Phase Change Phenolphthalein Properties Options shuffled
A column on the periodic table. Elements in the same column have similar properties.
🔊 Hear definition Select a word… Classify Communicate Compare Conclude Data Design Cycle Engineer Evidence Infer Interpret Investigate Justify Measure Observe Organize Predict / Hypothesis Question Record Relate Science Acidic Acidity Alkalinity Atoms Basic Changes in Matter Chemical Equation Compounds Conservation of Mass Elements Families Groups Indicator Litmus Paper Metals Mixtures Molecules Neutral Noble Gases Non-Metals Periodic Table of Elements Periods pH pH Scale Phase Change Phenolphthalein Properties Options shuffled
A substance or observation that signals a condition or change; an acid–base indicator changes color over a particular pH range.
🔊 Hear definition Select a word… Classify Communicate Compare Conclude Data Design Cycle Engineer Evidence Infer Interpret Investigate Justify Measure Observe Organize Predict / Hypothesis Question Record Relate Science Acidic Acidity Alkalinity Atoms Basic Changes in Matter Chemical Equation Compounds Conservation of Mass Elements Families Groups Indicator Litmus Paper Metals Mixtures Molecules Neutral Noble Gases Non-Metals Periodic Table of Elements Periods pH pH Scale Phase Change Phenolphthalein Properties Options shuffled
An acid–base indicator paper that turns red in acidic conditions and blue in basic conditions; it does not give an exact pH.
🔊 Hear definition Select a word… Classify Communicate Compare Conclude Data Design Cycle Engineer Evidence Infer Interpret Investigate Justify Measure Observe Organize Predict / Hypothesis Question Record Relate Science Acidic Acidity Alkalinity Atoms Basic Changes in Matter Chemical Equation Compounds Conservation of Mass Elements Families Groups Indicator Litmus Paper Metals Mixtures Molecules Neutral Noble Gases Non-Metals Periodic Table of Elements Periods pH pH Scale Phase Change Phenolphthalein Properties Options shuffled
An element that is usually shiny, can be bent, and conducts heat and electricity well.
🔊 Hear definition Select a word… Classify Communicate Compare Conclude Data Design Cycle Engineer Evidence Infer Interpret Investigate Justify Measure Observe Organize Predict / Hypothesis Question Record Relate Science Acidic Acidity Alkalinity Atoms Basic Changes in Matter Chemical Equation Compounds Conservation of Mass Elements Families Groups Indicator Litmus Paper Metals Mixtures Molecules Neutral Noble Gases Non-Metals Periodic Table of Elements Periods pH pH Scale Phase Change Phenolphthalein Properties Options shuffled
Two or more substances mixed together but not joined chemically, like trail mix or salt water.
🔊 Hear definition Select a word… Classify Communicate Compare Conclude Data Design Cycle Engineer Evidence Infer Interpret Investigate Justify Measure Observe Organize Predict / Hypothesis Question Record Relate Science Acidic Acidity Alkalinity Atoms Basic Changes in Matter Chemical Equation Compounds Conservation of Mass Elements Families Groups Indicator Litmus Paper Metals Mixtures Molecules Neutral Noble Gases Non-Metals Periodic Table of Elements Periods pH pH Scale Phase Change Phenolphthalein Properties Options shuffled
A group of two or more atoms held together by chemical bonds.
🔊 Hear definition Select a word… Classify Communicate Compare Conclude Data Design Cycle Engineer Evidence Infer Interpret Investigate Justify Measure Observe Organize Predict / Hypothesis Question Record Relate Science Acidic Acidity Alkalinity Atoms Basic Changes in Matter Chemical Equation Compounds Conservation of Mass Elements Families Groups Indicator Litmus Paper Metals Mixtures Molecules Neutral Noble Gases Non-Metals Periodic Table of Elements Periods pH pH Scale Phase Change Phenolphthalein Properties Options shuffled
Describes a water-based solution with equal hydrogen- and hydroxide-ion activities; its pH is 7 at 25 °C.
🔊 Hear definition Select a word… Classify Communicate Compare Conclude Data Design Cycle Engineer Evidence Infer Interpret Investigate Justify Measure Observe Organize Predict / Hypothesis Question Record Relate Science Acidic Acidity Alkalinity Atoms Basic Changes in Matter Chemical Equation Compounds Conservation of Mass Elements Families Groups Indicator Litmus Paper Metals Mixtures Molecules Neutral Noble Gases Non-Metals Periodic Table of Elements Periods pH pH Scale Phase Change Phenolphthalein Properties Options shuffled
Group 18 elements, which usually have very low chemical reactivity under ordinary conditions; some can form compounds.
🔊 Hear definition Select a word… Classify Communicate Compare Conclude Data Design Cycle Engineer Evidence Infer Interpret Investigate Justify Measure Observe Organize Predict / Hypothesis Question Record Relate Science Acidic Acidity Alkalinity Atoms Basic Changes in Matter Chemical Equation Compounds Conservation of Mass Elements Families Groups Indicator Litmus Paper Metals Mixtures Molecules Neutral Noble Gases Non-Metals Periodic Table of Elements Periods pH pH Scale Phase Change Phenolphthalein Properties Options shuffled
An element without the typical combination of metallic properties; many conduct electricity poorly, but exceptions exist.
🔊 Hear definition Select a word… Classify Communicate Compare Conclude Data Design Cycle Engineer Evidence Infer Interpret Investigate Justify Measure Observe Organize Predict / Hypothesis Question Record Relate Science Acidic Acidity Alkalinity Atoms Basic Changes in Matter Chemical Equation Compounds Conservation of Mass Elements Families Groups Indicator Litmus Paper Metals Mixtures Molecules Neutral Noble Gases Non-Metals Periodic Table of Elements Periods pH pH Scale Phase Change Phenolphthalein Properties Options shuffled
A chart of the elements arranged by increasing atomic number, with recurring patterns in properties.
🔊 Hear definition Select a word… Classify Communicate Compare Conclude Data Design Cycle Engineer Evidence Infer Interpret Investigate Justify Measure Observe Organize Predict / Hypothesis Question Record Relate Science Acidic Acidity Alkalinity Atoms Basic Changes in Matter Chemical Equation Compounds Conservation of Mass Elements Families Groups Indicator Litmus Paper Metals Mixtures Molecules Neutral Noble Gases Non-Metals Periodic Table of Elements Periods pH pH Scale Phase Change Phenolphthalein Properties Options shuffled
A row across the table of elements, read from left to right.
🔊 Hear definition Select a word… Classify Communicate Compare Conclude Data Design Cycle Engineer Evidence Infer Interpret Investigate Justify Measure Observe Organize Predict / Hypothesis Question Record Relate Science Acidic Acidity Alkalinity Atoms Basic Changes in Matter Chemical Equation Compounds Conservation of Mass Elements Families Groups Indicator Litmus Paper Metals Mixtures Molecules Neutral Noble Gases Non-Metals Periodic Table of Elements Periods pH pH Scale Phase Change Phenolphthalein Properties Options shuffled
A number describing how acidic or basic a water-based solution is; lower values indicate greater acidity.
🔊 Hear definition Select a word… Classify Communicate Compare Conclude Data Design Cycle Engineer Evidence Infer Interpret Investigate Justify Measure Observe Organize Predict / Hypothesis Question Record Relate Science Acidic Acidity Alkalinity Atoms Basic Changes in Matter Chemical Equation Compounds Conservation of Mass Elements Families Groups Indicator Litmus Paper Metals Mixtures Molecules Neutral Noble Gases Non-Metals Periodic Table of Elements Periods pH pH Scale Phase Change Phenolphthalein Properties Options shuffled
A way to express acidity and basicity numerically. Many dilute water-based solutions fall between 0 and 14, but values can extend beyond that range.
🔊 Hear definition Select a word… Classify Communicate Compare Conclude Data Design Cycle Engineer Evidence Infer Interpret Investigate Justify Measure Observe Organize Predict / Hypothesis Question Record Relate Science Acidic Acidity Alkalinity Atoms Basic Changes in Matter Chemical Equation Compounds Conservation of Mass Elements Families Groups Indicator Litmus Paper Metals Mixtures Molecules Neutral Noble Gases Non-Metals Periodic Table of Elements Periods pH pH Scale Phase Change Phenolphthalein Properties Options shuffled
Matter changing between solid, liquid, and gas. The particles change how they move and how far apart they are.
🔊 Hear definition Select a word… Classify Communicate Compare Conclude Data Design Cycle Engineer Evidence Infer Interpret Investigate Justify Measure Observe Organize Predict / Hypothesis Question Record Relate Science Acidic Acidity Alkalinity Atoms Basic Changes in Matter Chemical Equation Compounds Conservation of Mass Elements Families Groups Indicator Litmus Paper Metals Mixtures Molecules Neutral Noble Gases Non-Metals Periodic Table of Elements Periods pH pH Scale Phase Change Phenolphthalein Properties Options shuffled
An acid–base indicator that is colorless in acidic and near-neutral solutions and pink over a range of basic conditions.
🔊 Hear definition Select a word… Classify Communicate Compare Conclude Data Design Cycle Engineer Evidence Infer Interpret Investigate Justify Measure Observe Organize Predict / Hypothesis Question Record Relate Science Acidic Acidity Alkalinity Atoms Basic Changes in Matter Chemical Equation Compounds Conservation of Mass Elements Families Groups Indicator Litmus Paper Metals Mixtures Molecules Neutral Noble Gases Non-Metals Periodic Table of Elements Periods pH pH Scale Phase Change Phenolphthalein Properties Options shuffled
A trait that describes a material and helps you tell it apart from others.
🔊 Hear definition Select a word… Classify Communicate Compare Conclude Data Design Cycle Engineer Evidence Infer Interpret Investigate Justify Measure Observe Organize Predict / Hypothesis Question Record Relate Science Acidic Acidity Alkalinity Atoms Basic Changes in Matter Chemical Equation Compounds Conservation of Mass Elements Families Groups Indicator Litmus Paper Metals Mixtures Molecules Neutral Noble Gases Non-Metals Periodic Table of Elements Periods pH pH Scale Phase Change Phenolphthalein Properties Options shuffled