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Chemistry Basics Activity Worksheet

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Chemistry Basics Activity Worksheet

Use the particle models and everyday examples to investigate states of matter, mixtures, dissolving and chemical change. For the fizz investigation, work with an adult, use a small amount of each ingredient, and do not taste anything.

Matter all around us

Matter is anything that has mass and takes up space. Solids, liquids and gases are three common states of matter.

1.Three particle models are described below. Model A: particles are tightly packed in a regular arrangement. Model B: particles are close together but arranged irregularly. Model C: particles are spread far apart throughout the container. Which model shows a gas? Choose one and explain what the particle spacing tells you.

2.At about 20°C, which item is a solid?

A glass of water
An ice cube
Water vapour in the air
A puddle of orange juice

3.Complete the change of state: when liquid water boils and becomes water vapour, it changes from a to a .

Mixtures and dissolving

A mixture contains two or more substances together. Some substances dissolve in water and seem to disappear, while others remain visible.

4.Ari mixes sand with water in one cup and salt with water in another. What difference should Ari observe after stirring?

5.Which set contains only mixtures?

Pure water and oxygen
Fruit salad and salt water
Gold and pure water
Sugar and oxygen

6.Name one everyday substance that dissolves in water and one that does not. Explain how you could tell.

Clues that a chemical change happened

Some changes only mix substances together. In a chemical change, new substances form. Bubbles, a colour change or a temperature change can be clues, but one clue alone does not always prove a chemical change.

7.Baking soda and vinegar are mixed in a cup. The mixture fizzes and makes bubbles. What is the best conclusion?

The mixture has frozen
A gas is being produced, which is evidence of a chemical change
The baking soda has simply melted
The vinegar has turned into a solid

8.Compare mixing sand and water with mixing baking soda and vinegar. Which is more likely to make a new substance, and what observation supports your answer?

9.Plan a fair test to compare how quickly sugar dissolves in cold and warm water. State what you would change and name two things you would keep the same.

10.After a small baking soda and vinegar demonstration, describe one observation and explain what it suggests. Do not taste the mixture.

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Chemistry Basics Activity Worksheet

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3 printable pages

About This Worksheet

Free in Kuraplan

Print-Ready

AI-Generated

For Teachers & Parents

Need a custom version of this worksheet?

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