Chemistry Lab: Presto Change-o!

What should be done while bubbles are forming in the 'Metallic Mayhem' experiment?

• Light a splint and hold it near the test tube

• Add more acid

• Remove the test tube from the rack

• Stir the solution.

Tags

NGSS.MS-PS1-2

During the 'Precipitation Occurs with Cloudiness' experiment, how long should you allow the change to proceed?

• 2 minutes

• 5 minutes

• 10 minutes

• 15 minutes

What is the role of the wooden splint in the 'Bubble, Bubble Toil and Trouble' experiment?

• To stir the solution

• To measure temperature

• To test for gas

• To add heat

Tags

NGSS.MS-PS1-2

The breaking of the lumps of baking soda was a (CHEMICAL / PHYSICAL) change.

• CHEMICAL

• PHYSICAL

Which of the following is not a chemical change?

• Cooking an egg

• Freezing water

• Digesting food

• Burning coal

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

The filtering of the solid resulted in a (CHEMICAL / PHYSICAL) change. Defend your answer.

• CHEMICAL

• PHYSICAL

Measure 5mL of acid.

• Intensive physical property

• Extensive physical property

The solid can be filtered using filter paper.

• Intensive physical property

• Extensive physical property

The reaction produced a gas.

• Physical property

• Physical change

• Chemical property

• Chemical change

Tags

NGSS.MS-PS1-2

Baking soda is reactive with acid.

• Physical property

• Physical change

• Chemical property

• Chemical change

Tags

NGSS.MS-PS1-2