Matter
States of Matter
Phase Changes
Mass and Volume
100

What is matter?

Matter is anything that has mass and takes up space.

100

What is a solid?

A solid is a state of matter that keeps its own shape and has a fixed volume.

100

What is melting?

Melting is the phase change from solid to liquid.

100

What is mass measured in?

Mass is measured in grams (g) or kilograms (kg).

200

What is mass?

Mass is the amount of matter in an object.

200

What is a liquid?

  • A liquid is a state of matter that takes the shape of its container but has a fixed volume.



200

What is freezing?

Freezing is the phase change from liquid to solid.


200

What is volume measured in?

Volume is measured in liters (L) or milliliters (mL).

300

What takes up space?

Matter takes up space.

300

What is a gas?

  • A gas is a state of matter that fills the entire space of its container with no fixed shape or volume.



300

What is evaporation?

Evaporation is the phase change from liquid to gas.

300

Define mass.

Mass is the amount of matter in an object.

400

Give an example of matter.

Trees, air, and water are examples of matter.

400

How do particles in liquids behave?

 Liquids have particles that are close together but can move past each other, allowing them to flow.

400

What is condensation?

Condensation is the phase change from gas to liquid


400

How do you measure volume?

Volume can be measured using graduated cylinders or measuring cups.

500

How do particles behave?

Particles in matter are always moving.

500

What happens to particles in solids?

Particles in solids are tightly packed and vibrate in place.

500

Describe a phase change.

A phase change is when matter changes from one state to another, like ice melting into water.

500

Explain density

Density is how tightly packed the particles are in an object, calculated as mass per unit volume.