In a scientific model, what do straight lines do?

In a scientific model, what do arrows show?

What should NOT be included in a scientific model?

What is NOT a property of matter?

The air cannon was able to knock down the cups because...

Air is a ...

When baking soda and vinegar mix, what is released?

When baking soda and vinegar were mixed in a closed system, the balloon inflated. Why?

When a full balloon (closed system) and an empty balloon (open system) were placed on a balance, the full balloon sank and the empty balloon rose. Why?

When we let air out of the balloon and put it on the scale, the amount of weight went down. Why?

You compare the mass of a full balloon and an empty balloon. Which statement is true?

When baking soda and vinegar were combined, the gas of carbon dioxide was released because...

Some matter does not take up space.

Some matter is made up of large particles.

An example of where we can see the movement of air particles is...

Which statement is TRUE?

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