Vocabulary
This word means "what something is made of" and can be solid, liquid, or gas.
Matter
Evaporate
Name one property you could observe about an apple (pick from color, shape, size, or texture).
Color (red)
A word for a substance that flows and takes the shape of its container.
Reversible
This property tells you how rough or smooth something feels.
To mix something into a liquid so it seems to disappear is to _____.
When you bake a cake and the batter changes into a solid cake that you cannot turn back into batter, that is called a(n) _____ change.
Irreversible
If a material can be stretched or bent and then goes back to its original shape, we say it is _____.
A person who designs things to solve problems (like building a bridge or a water filter).
If sugar disappears when stirred into warm tea but can be recovered by evaporating the water, is this change reversible or irreversible? Explain in one sentence.
You are testing two materials to see which is better for a raincoat. Which property (from the list: absorbent, waterproof, stretchy) would you pick and why (one short sentence)?
A short word for a characteristic you can use to describe matter (for example, size, color, or texture).
Give one real-life example of a reversible change and one real-life example of an irreversible change (one sentence each).
Reversible — melting ice to water; Irreversible — baking a cake.
Describe how an engineer might use properties of materials to choose which one to build a toy car that must be light and strong (two short sentences).
An engineer would choose a light material (to make the car go faster) that is also strong (so it does not break). They might test samples to find a balance between lightness and strength.