Unit 2 Test review (Matter and Changes)

Substance that consists of one type of atom. It is a pure substance. Found on the Periodic Table.

• Element

• Compound

• Mixture

• Molecule

A type of substance containing atoms of two or more elements chemically bonded together is a mixture.

• Ture
• False

The lemonade in this glass is what type of mixture?

• Heterogeneous

• Homogeneous

All alloys are mixtures.

• True

• False

Which one of the following techniques would best be used to separate soil and water?

• Decanting
• distillation
• Filtration
• Chromatography

Which of the following is a method of separating solutions?

• hand separation
• filtering
• decanting
• evaporation 

Choose the one that is a chemical property

• Magnetism

• Size

• Color

• Reactivity with water

Tags

NGSS.HS-PS1-2

Look at this image.  Which object has the LOWEST density in water? How? 

• The Ping Pong Ball because it floats to the top 
• The bolt because it has sunk to the bottom
• The soda cap because it is not just full of air like the Ping Pong ball

Tags

NGSS.MS-PS2-2

Jack has a rock. The rock has a mass of 14g and a volume of 2cm³. What is the density of the rock?

• 7 mL
• 7 g/cm³
• 28 g/cm³
• 1/7 g/cm³

Tags

CCSS.HSG.MG.A.2

Frank has an eraser. It has a mass of 4g, and a volume of 2cm³. What is its density?

• 8 g/cm³
• 2 g/cm³
• 1/2 g/cm³
• 24 g/cm³

Tags

NGSS.MS-PS1-2