OpenSciEd

What happens when a bath bomb is added to water?

• When a bath bomb is added to water, it dissolves and breaks down into particles.

• When a bath bomb is added to water, it does not change.

• When a bath bomb is added to water, fizzing and bubbling show a gas is produced.

• When a bath bomb is added to water, a new state of matter is formed from the particles.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Where is the gas coming from when a bath bomb is added to water?

• When a bath bomb is added to water, a gas is produced from new matter that was somehow added to a closed system (sealed bottle).

• When a bath bomb is added to water, a gas is produced from matter that was already inside the closed system (sealed bottle).

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which combination of substances in a bath bomb in water produce the gas?

• Citric acid

• Cornstarch

• Baking soda

• Epsom salts

• Sugar

Tags

NGSS.MS-PS1-2

How can we explain another phenomenon, like elephant toothpaste, where gas bubbles appear after combining different substances together?

• Combining different substances may result in forming something new, even inside a closed system.

• Combining different substances forces one of the substances to change to a gas.

• Combining different substances may result in particles rearranging and interacting in different ways.

Tags

NGSS.MS-PS1-2

Which describes solubility best?

• how well a substance can change into a liquid

• how well a substance can dissolve in a liquid

Tags

NGSS.MS-PS1-2

Which are possible evidence of a gas being produced? Select all that apply.

• fizzing

• color change of the liquid

• bubbles

• a new sound or odor

Tags

NGSS.MS-PS1-2

When a substance breaks down into particles inside a liquid it is called

• melting

• dissolving

• solubilizing

• chemical change

Tags

NGSS.MS-PS1-2

This would be an example of

• particles in a substance

• particles in a mixture

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-4

Which are considered evidence that carbon dioxide gas is produced when a bath bomb is added to water? Select all that apply.

• The gas extinguishes a flame.

• The gas does not extinguish a flame.

• The gas is less dense than air.

• The gas is more dense than air.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Where is the gas that is produced by a bath bomb NOT coming from?

• a bath bomb added to water

• a crushed up bath bomb

• pockets of air or gas within the bath bomb

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5