Review for Unit 1 Science test

A combination of 2 or more substances that can be easily separated is called-

• a mixture

• a solution

• a solute

• a solvent

Tags

NGSS.5-PS1-4

A combination of two or more substances that cannot easily be separated--

• mixture
• solution
• solute
• solvent

Tags

NGSS.5-PS1-3

NGSS.5-PS1-4

If I added 27 grams of salt to water and separated the solution with a hot plate, what amount of salt would be left behind?

• 20 grams
• 0 grams
• 27 grams
• 10 grams

Tags

NGSS.5-PS1-2

Which of the following is a method of separating solutions?

• hand seperation
• filtering
• screening
• evaporation 

If you spilled nails in a sandbox, what separation tool/method could you use to clean out the sandbox so it would be safe for children to play in?

• Filter
• Screen
• Magnet
• Evaporation

This tool is used for separating solids from liquids or coarse particles from fine particles

• Hands
• Sieve
• Boiling water
• Evaporation

A tool used to separate out magnetic substances in mixtures such as iron filings

• Meter Stick
• Magnet
• Triple Beam Balance
• Tweezers

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

When we put a substance in water and stir it to see if it dissolves we are testing for_______________________.

• Relative Density
• Solubility
• Mass
• Temperature

Tags

NGSS.MS-PS1-2

You have the following solids in a lab: salt, sand, lemonade powder, and pepper.  Which solids will dissolve in water to create a solution?

• pepper, sand, and salt
• salt, lemonade powder, and sand
• salt and lemonade powder
• pepper and sand

Tags

NGSS.MS-PS1-2

Trail mix, with nuts, raisins, pretzels and candy pieces is a good example of a mixture.

• True
• False

Tags

NGSS.5-PS1-4