Endo and Exothermic

Mike investigates the metal magnesium.

He burns a piece of magnesium in a Bunsen burner flame. Burning (combustion) releases energy. Write down the word used to describe a reaction that releases energy

• Endothermic.

• Exothermic.

• Physical.

• Chemical.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

Safia investigates endothermic and exothermic reactions.

She mixes different chemicals together and records the temperature change.

What is the change on the temperature in the reaction between water and ammonium nitrate?

• +5 °C

• -5 °C

• -4 C°

• +4 °C

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Safia investigates endothermic and exothermic reactions. She mixes different chemicals together and records the temperature change. Based on the results, which reaction is exothermic?

• The first one only.

• The second one only.

• The third one only.

• The first and the third.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

Changes can be exothermic or endothermic.

What is meant by the word exothermic?

Tags

NGSS.MS-PS1-4

Chemical reactions can grouped up as endothermic and exothermic reactions. Give two example of each one of them.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Baking bread is an example of which reaction?

• Endothermic

• Exothermic

• Neither

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Burning sugar is an example of which reaction?

• Endothermic

• Exothermic

• Neither

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

Cooking an egg is an example of which reaction?

• Endothermic

• Exothermic

• Neither

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Photosynthesis is an example of which reaction?

• Endothermic

• Exothermic

• Neither

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Combustion (fireworks, explosions, burning, etc.) is an example of which reaction?

• Endothermic

• Exothermic

• Neither