Classify means put things into groups.
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Communicate means share ideas or results.
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Compare means see how things are the same or different.
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Conclude means say what you learned.
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Data is information you collect.
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The design cycle is plan, test, and improve.
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An engineer designs and builds solutions.
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Evidence is data that supports an idea.
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Infer means make a guess using evidence.
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Interpret means explain what data means.
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Investigate means study a question.
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Justify means explain why with evidence.
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Measure means find size, length, or amount.
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Observe means use your senses.
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Organize means put things in order.
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Predict means guess what will happen. A hypothesis is a testable prediction.
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A question asks for information.
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Record means write down data.
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Relate means connect ideas.
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Science is the study of the natural world.
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Acidic means sour or strong. Low pH.
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Acidity shows how acidic something is.
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Alkalinity shows how basic something is.
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Atoms are the smallest parts of matter.
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Basic means not acidic. High pH.
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Matter can change. Physical change: shape changes. Chemical change: new substance forms.
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A chemical equation shows a reaction.
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Compounds are two or more elements bonded.
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Mass is not created or destroyed.
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Elements are basic substances.
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Families are columns on the periodic table.
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Groups are elements with similar properties.
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An indicator changes color to show pH.
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Litmus paper shows if something is acidic or basic.
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Metals are shiny and conduct electricity.
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Mixtures are substances mixed together.
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Molecules are atoms joined together.
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Neutral means not acidic or basic. pH = 7.
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Noble gases do not react easily.
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Non-metals are not shiny and do not conduct well.
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The periodic table organizes elements.
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Periods are rows on the periodic table.
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pH measures acidity or basicity.
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The pH scale goes from 0 to 14.
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A phase change is solid, liquid, or gas changing.
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Phenolphthalein is a pH indicator. It changes color.
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Properties describe matter. Color, hardness, density.
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