Signs of a chemical change

When bananas ripen a chemical change is taking place. Which sign do you see?

• change of color

• odor

Tags

NGSS.MS-PS1-2

Which sign of a chemical change do you see in fireworks exploding?

• precipitate forms

• rust forms

• release of heat

Tags

NGSS.MS-PS1-2

Identify the sign that a chemical change is happening in a glass of water with an antacid.

• rust

• bubbles

• odor

Tags

NGSS.MS-PS1-2

Freshly baked cookies is an example of a chemical change. Which sign of a chemical reaction do you experience?

• precipitate forms

• change of color

• release of light

• odor

Tags

NGSS.MS-PS1-2

Adding lemon to milk will create a chemical change called?

• precipitate

• rust

• bubbles

• light

Tags

NGSS.MS-PS1-2

A sign of a chemical change on a peace of iron that has an orange colour?

• light

• bubbles

• rust

• heat

Tags

NGSS.MS-PS1-2