How Can I Make New Stuff From Old? Learning Set 2

What is the formula for density?

• D=m/v

• D=v/m

• D=w/m

• D=m/w

Which of the following is a chemical reaction?

• Burning paper

• Chopping wood

• Tearing paper

• Smashing rocks

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

The reactants are on the ________ side of a chemical equation.

• Right

• Left

The products are on the ____________ side of a chemical equation.

• Right

• Left

What are the reactants in the following equation?

2H₂ + O₂ → 2H₂O

• 2H₂ + O₂

• 2H₂O

• O₂

• 2H₂

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What are the products in the following chemical equation?

Na + OH → NaOH

• Na

• OH

• Na + OH

• NaOH

Tags

NGSS.MS-PS1-1

How many atoms are in NaOH?

• 2

• 3

• 4

• 1

Tags

NGSS.MS-PS1-1

How many atoms are in 2H₂O₂?

• 8

• 6

• 5

• 4

Tags

NGSS.MS-PS1-1

Mya needs to find the volume of an unusual shaped rock. She uses the displacement method to find the volume of the rock. If her beaker has 200mL of water in it to start with and ends with 275mL after adding the rock, what is the volume of the rock?

• 275 cm³

• 75 cm³

• 175 cm³

Which of the following is a synthetic material?

• Cotton

• Wood

• Nylon

• Wool

Tags

NGSS.MS-PS1-3