Unit 3 Science

How are solids and gases different from one another?

• Solids have no definite shape, while gases have no definite volume.

• Solids have no definite volume, while gases have a definite shape.

• Solids have a definite shape, while gases have no definite volume.

• Solids have a definite volume, while gases have a definite shape.

Tags

NGSS.5-PS1-3

Examine substances X and Y, each placed in identical containers. Which answer correctly classifies each substance?

• Substance X: liquid, Substance Y: solid

• Substance X: solid, Substance Y: liquid

• Substance X: liquid, Substance Y: liquid

• Substance X: solid, Substance Y: solid

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-2

When soup cooks, it becomes so hot that steam rises from the pot. Into which state of matter is steam classified?

• solid

• liquid

• gas

• food

Tags

NGSS.MS-PS1-4

A teacher lists the properties of a substance in a chart.

How should the substance be classified, and why?

• Liquid; it has a shiny surface.

• Liquid; it has no color.

• Solid; it has a fixed shape.

• Solid; it has a mass of 100 g.

Jake built a ping pong table with his family. Which statement best classifies the ping pong table?

• The ping pong table is a gas.

• The ping pong table is a solid.

• The ping pong table is a combination of liquids and gases.

• The ping pong table is a combination of gases and solids.

Tags

NGSS.5-PS1-3

A student places four objects in an oven and records the changes in a table.

Which object can be changed back to its original form after cooling?

• bread dough

• chocolate bar

• potato pieces

• soft clay

Tags

NGSS.MS-PS1-2

A student boils an egg for 10 minutes and then keeps the egg in a refrigerator for 10 minutes. What happens to the egg during the boiling and cooling?

• The outside of the egg changes temperature and cannot change back to its starting temperature.

• The inside of the egg changes to a solid and cannot change back to a liquid.

• The outside of the egg does not change temperature during the boiling or cooling.

• The inside of the egg changes to a solid during boiling and returns to liquid during cooling.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Amanda adds 6 g of salt to 10 g of water. How much salt solution will be formed?

• 4 g

• 6 g

• 10 g

• 16 g

Tags

NGSS.MS-PS1-5

A girl sketches the appearance of popcorn kernels before and after being heated in a popcorn popper and records the changes that she observes in a list. What types of changes does the girl directly observe?

• 1 and 2 only

• 2 and 3 only

• 1, 3, and 4

• 2, 3, and 4

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

The diagram represents four processes, labeled A-D, that occur when water changes phases. Which process represents boiling?

• process A

• process B

• process C

• process D

Tags

NGSS.MS-PS1-4