Mixtures and Solutions

A student mixes together iron filings, sand, salt, gravel, and water. Which ingredients will keep all their physical properties after being mixed?

• Iron filings, sand, and gravel

• Iron filings, sand, and salt

• Sand, gravel, and salt

• Sand, salt, and water

A student dropped a blue dye tablet in a glass of water. The tablet dissolved completely in the water to from a solution. Which physical property of the blue dye tablet did NOT change when mixed with water?

• Shape

• Size

• Texture

• Color

Tags

NGSS.MS-PS1-2

A teacher mixes 50 grams of sugar with 100 mL of water in a beaker until the sugar dissolves. The teacher then puts the beaker on a hotplate and evaporates the water.  How much sugar will be left after all the water evaporates?

• 0 grams

• 10 grams

• 50 grams

• 100 grams

A class completes an experiment where they mix together salt, sand, and water. Which three tools will they need to separate the mixture?

• Hotplate, Spoon, Beaker

• Hotplate, Filter, Beaker

• Filter, Funnel, Beaker

• Filter, Spoon, Beaker

Which of these is not a mixture?

• Picture A

• Picture B

• Picture C

• Picture D

What would be the best way to separate the trail mix?

• Put the trail mix in a container and pour water on it.

• Drag a magnet over the trail mix to take apart the items.

• Place the trail mix in a pan and place it in the Sun.

• Use a utensil to physically separate the trail mix.

All of the following science tools can be used to separate a mixture, except _________.

• a camera

• a hotplate

• a filter paper

• tweezers

Tags

NGSS.MS-PS1-2

All of the following are solutions except?

 

• Picture

• Picture

• Picture C

• Picture D

Tags

NGSS.MS-PS1-2

Which of the following is the best method for separating ocean water?

• Use a filter to separate the salt from the water.

• Heat up a sample of ocean water on a hotplate.

• Add ten tablespoons of regular salt to ocean water.

• Place a sample of ocean water into the freezer.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

A student completes an investigation, where sand and water are mixed together. The student needs to separate the sand from the water. Which of the following procedures should the student follow?

• Pour the mixture through a funnel to separate the sand from the water.

• Pour the mixture through a paper filter to separate the sand, and allow the water to flow through to another container.

• Pour the mixture into a glass, and use your hand to separate the sand from the water.

• Pour the mixture into a bowl, and dip all the water out with a spoon.

Tags

NGSS.3-5-ETS1-2