How Do Scientists Know when Substances Change?

What are the three states of matter?

• Liquid

• Solid

• Gas

• Balloon

Changes in matter can be SEEN, such as:

• glass after it is scratched by sandpaper

• salt dissolving in water

• Iron turns rusty

• No changes can ever be seen

Tags

NGSS.MS-PS1-2

When you apply more heat to a substance it becomes more like a

• liquid

• solid

• rock

• honey

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

There are 4 common changes of states of matter. They are:

• melting, freezing, evaporation, condensation

• melting, freezing, precipitation, glue

• evaporation, condensation, precipitation, water cycle

• liquid, solid, gas, plasma

Tags

NGSS.MS-PS1-4

When a substance changes from solid to liquid it is called:

• melting

• freezing

• evaporation

• condensation

Tags

NGSS.MS-PS1-4

When a liquid changes into a solid it is called:

• melting

• freezing

• evaporation

• condensation

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

When a liquid changes to a gas it is called:

• melting

• freezing

• evaporation

• condensation

Tags

NGSS.MS-PS1-4

When a gas changes to a liquid it is called:

• melting

• freezing

• evaporation

• condensation

You know when a substance changes to a new substance because there will be a:

• reaction

• burnt edge

• fizzing

• explosion

Tags

NGSS.MS-PS1-2

There are four signs that a reaction has occurred. They are...

• gas formation, solid formation, color change, energy change

• gas formation, liquid formation, size change, temperature change

• liquid, solid, gas, plasma

• growth, temperature, size, shape

Tags

NGSS.MS-PS1-2