States of Matter
Phase Changes
Law of Conservation of Matter
Thermal Energy
Previous Unit's review
100

The state of matter with particles vibrating in place is called?

Solid/Solids

100

Phases changes occur because __________ is either removed or added. 

Energy

100

The Law of Conservation of Matter states that matter cannot be ________ or _________. 

Created, Destroyed

100

The tool used to measure temperature is called...

A thermometer

100

_______ are the building blocks of life. 

Cells.

200

The state of matter where particles slide past each other is called?

Liquid/liquids

200

Name the 3 phases changes where energy is added.

Melting, Evaporation, and Sublimation

200

If 25 grams of substance A reacts completely with 15 grams of substance B in a closed system, this is the total mass of the products.

40 grams.

200

Energy of motion is called... 

Kinetic Energy

200

___________ are made up of 2 or more atoms joined together through chemical bonds.

Molecules.

300

The state of matter where particles move freely and bounce around is called?

Gas/Gases

300

Name the 3 phase changes where energy is removed

Freezing, Condensation, and Deposition.

300

If the mass of products is less than the mass of reactants, what type of system was used?

An open system.

300

Thermal energy depends on two things.... _______ & ________.

Mass & Temperature

300

A ________ observation is made through using numbers, values, or measurements.

Quantitative

400

Which state or states have a fixed volume?

Solids and Liquids
400

This phase change happens when a gas turns directly into a solid without becoming a liquid first.

Deposition.

400

In a sealed container, 60 g of reactants produce 3 different products. One product has a mass of 15 g and another has a mass of 18 g. This is the mass of the third product.

27 grams.

400

This is the movement of thermal energy from a warmer object to a cooler object.

Heat

400

To calculate _________, you take mass divided by volume.

Density

500

Which state or states of matter take the shape of their container?

Liquids & Gases

500
__________ is the point at which a liquid becomes a gas.

Boiling Point

500

This law states that during any chemical or physical change, the total mass of the reactants and products is...

Equal.

500

Thermal Energy is the _______ amount of kinetic energy in the particles of a substance. Temperature is the _______amount of kinetic energy in the particles in a substance.  

Total, Average

500

What is the method called that we use to measure the volume of irregularly shaped objects? It requires us to use a Graduated Cylinder.

Water Displacement Method.

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