Unit 3: Materials

Which materials around the classroom are solids?

Are there materials in the classroom that are liquids or gases? Name them.

How did you decide whether each material was a solid, liquid or gas?

What is matter?

Explain the difference between a material and a substance.

Is glass a material or a substance? Say why.

How are sand and pure water similar?

How are sand and pure water different?

Measure 100 ml of cold water into a beaker or glass jar. Add a few drops of food colouring. Do not stir the water or move the beaker. Observe what happens, record labelled drawings of the beaker/jar, water and dye, explain the change, and name the type of scientific enquiry.

Compare what happened when groups acting as solids and liquids tried to shake.

Compare moving closer together or farther apart as solids and liquids.

Compare changing the shape of the group as solids and liquids.

How does the particle game demonstrate the particle model of matter?

True or false: All substances are made from particles.

True or false: Materials are not made from particles.

True or false: Particles in solids cannot move.

True or false: Particles in liquids can slide past one another.

True or false: There are always spaces between particles.

Zara says water can change shape; Sofia says it cannot. Who is correct? Plan and carry out an investigation using differently shaped containers. Include a question, equipment, observations, conclusion and particle-model explanation.

Which solid flowed fastest?