G7 - Science Unit 2 - Formative Assessment 1 (Chemistry)

Which property describes all matter? Choose one answer.

• All matter can be seen

• All matter has temperature and is always hot

• All matter has a fixed shape

• All matter has mass and takes up space

Two objects each have a mass of 10 g. Object A has a volume of 5 cm³ and object B has a volume of 40 cm³. Which object has the greater density?

• Object A has more density than object B

• Object B has more density than object A

• They have the same density

• None of the above

Which of these is an example of a physical property?

• Rusting of iron

• The shape of a piece of chocolate

• The effect of acid rain on motors

• Gasoline burning in a car engine

An object has a mass of 100 g and a volume of 50 cm³. What is its density?

• 3 g/cm³

• 100 g/cm³

• 0.33 g/cm³

• 2 g/cm³

Which of the following is an example of a chemical change?

• Dissolving salt in water

• Crushing a can

• Burning paper

• Melting ice

Which property of matter describes the amount of space an object occupies?

• Mass

• Density

• Volume

• Weight

What happens to the density of an object if its volume increases while its mass stays the same?

• The density increases

• The density decreases

• The density remains the same

• The density becomes zero

What happens to the density of an object if its mass increases while its volume stays the same?

• The density increases

• The density decreases

• The density remains the same

• The density becomes zero

Consider the beaker image showing a red block floating near the top, a green block suspended in the middle, and a yellow block resting at the bottom. Compare the density of the yellow object at the bottom with the density of the water.

• The object has a higher density than water

• The object has a lower density than water

• The object has the same density as water

• The object has no density

The chart that shows all known elements is called the —

• Atomic Table

• Chemical Chart

• Periodic Table

• Elemental Chart