7.6a

All these are examples of a chemical change EXCEPT....

• Rusting metal

• Boiling water

• Burning paper

• Rotting food.

Tags

NGSS.MS-PS1-2

All of these are example of a physical change EXCEPT .....

• Melting butter

• Flattening a piece of metal

• Cutting paper

• Tarnishing silver vase

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

All these are example of a chemical change EXCEPT .....

• Change in state

• Change in color

• Change in temperature

• Change in order

Tags

NGSS.MS-PS1-2

Which of the following is a chemical property associated with wood?

• The ability to burn

• Snapping when bent

• Floating on water

• Having a rough surface

Which of the following is the BEST evidence that rusting is a chemical property rather than a physical property of iron?

• Rust forms slowly

• Rust can form on any material made of iron

• Rust cannot be turned back into iron

• Rust does not look the same as iron.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Students collect rock samples on a field trip and test them for different properties. Which of the following is a chemical property of a rocks?

• Having a white color

• Reacting when test with a drop of acid

• Having a rough surface

• Being easy to scratch with a piece of metal.

Tags

NGSS.MS-PS1-2

Students are give a sample of an unknown material. They want to perform tests to determine it identity. Which test is MOST likely to change the sample into a new substance?

• Dissolving it in water

• Heating it until it melts

• Grinding it into a powder

• Burning it in a flame

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

When an electric current passes through the wire filament inside a light bulb, the wire filament shines with a bright light and becomes very hot. When the current stos, the wire filament dims and cools. Which of the following is the BEST evidence that these changes are physical properties of the wire filament?

• The changes produce light.

• The changes are easily reversed.

• The changes are produced by electricity.

• The changes result in the release of heat.

Which of the following is NOT an example of a physical change?

• Melting chocolate

• Grinding up chalk into a powder

• Soured milk

• Ice cream melting

All of the following are examples of a chemical change EXCEPT ....

• Wood burning

• Cake baking

• Firecracker exploding

• Ice melting

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5