Physical and Chemical Change Vocabulary & Practice Questions

What is a chemical change?

• A change that alters the identity of a substance resulting in a new substance with different properties.

• A change to a substance that occurs without forming a new substance.

• A solid, liquid or a gas

• A change in the way something reflects light.

Tags

NGSS.MS-PS1-2

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What is a physical change?

• A characteristic that can be observed.

• Evidence of release of energy

• A change to a substance that occurs without creating a new substance, such as change in size or state of matter.

• A change that alters the identity of a substance resulting in a new substance or substances with different properties.

Tags

NGSS.MS-PS1-4

Define chemical property.

• A solid, liquid or gas

• Evidence that a new substance has formed resulting in solid particles that form or separate out of a liquid.

• A characteristic that can only be observed or measured when atoms of matter rearrange during a chemical change.

• Characteristic that can be observed without changing the substance.

Define physical properties-

• Characteristic that can be observed without changing the substance.

• a solid, liquid or gas

• increase or decrease in heat energy.

• A characteristic that can only be observed or measured when atoms of matter rearrange during a chemical change.

Tags

NGSS.MS-PS1-4

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What are the states of matter?

• chemical change and physical change

• solid, liquid, gas

• chemical properties and physical properties

• production of heat or light.

Tags

NGSS.MS-PS1-4

Which of these is NOT evidence of a new substance being formed?

• Production of heat and light

• production of a gas

• temperature change

• luster

Tags

NGSS.MS-PS1-2

What is a color change?

• A change in the way something reflects light.

• The production of a solid.

• increase or decrease in heat energy.

• a solid, liquid or a gas

Tags

NGSS.MS-PS1-2

What does it mean by a change in temperature?

• production of a solid

• increase or decrease in heat energy

• change in the way something reflects light.

• production of a gas.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Missy and Ethan discussed examples of the types of changes in matter. In which example is a chemical change taking place?

• A piece of metal is cut in half.

• An ice cube melts on a counter.

• A camper roasts marshmallows over a burning fire.

• A baker mixes together flour and sugar to make dough.

Tags

NGSS.MS-PS1-2

A teacher is conducting an investigation by using special equipment to hold a magnesium (Mg) ribbon over the flame of a Bunsen burner. Which observation indicates a chemical reaction took place?

• The temperature of the magnesium ribbon increased.

• The shape of the magnesium ribbon changed.

• The burning magnesium produced light.

• The magnesium appeared to evaporate.

Tags

NGSS.MS-PS1-2

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