Mixtures and Solutions

The mixture shown here -

• Maintains its physical properties when combined

• Dissolves after being stirred together

• Will evaporate after a certain period of time

• Cannot be separated into ingredients

Tags

NGSS.MS-PS1-2

Which of the following is NOT happening in the photo

• The temperature is rising

• Heat is being added

• Thermal energy is taken away

• A solid is turning into a liquid

Tags

NGSS.MS-PS1-4

The bobber is able to float in the water because -

• It has a greater density than the water

• It is too heavy to sink to the bottom

• It mass will not allow it to sink

• Its density is less than water

Tags

NGSS.3-PS2-1

Which of the following is true about solutions?

• The particles of the solute become very small

• Evaporation can be used to separate solutions

• The substance spreads out evenly

• All of these options are true

Tags

NGSS.5-PS1-1

The oven mitt shown here is being used because

• The mitts conduct thermal energy

• The pan conducts heat energy

• The pan is an insulator

• The mitts make the cook look cool

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

When condensation occurs

• Heat energy is being reduced

• Thermal energy is added

• The temperature is increasing

• A solid is turning to liquid

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which term best describes a liquid turning in a gas

• Melting

• Condensation

• Evaporation

• Freezing

Tags

NGSS.MS-PS1-4

Which of these terms best describe a substances ability to be dissolved?

• Density

• Solubility

• Insolubility

• Conductivity

Tags

NGSS.5-PS1-3

A solution is made using 100 ml of water, and 20 g of salt. What is the best way to separate this solution

• Pour the mixture through a strainer

• Add 100 ml more of water

• Use a coffee filter

• Evaporate the water on a hot plate

Tags

NGSS.3-5-ETS1-2

True or False? A solution can be made by combining vegetable oil and water.

• True

• False

Tags

NGSS.5-PS1-4