Mixtures & Solutions Review 1

Ben made a particle model of matter for an investigation. His teacher posted a question, “Is an empty bottle really empty?” Ben explains that the particles in gas have no particular arrangement, but it does exist even if he can’t see it. He used the following model to further demonstrate his findings. Which observation would best describe Ben’s findings during his investigation?

• The small particles are very attracted to each other.

• The small particles are hardly attracted to each other.

• The small particles have a fixed shape.

• The small particles stay close together.

Tags

NGSS.MS-PS2-5

Which of the following would provide the best evidence that air is made of matter?

• Making a small hole in a tire and measuring the amount of time it takes for it to become flat.

• Comparing the volume of an empty balloon to the volume of an inflated balloon.

• Measuring the temperatures of the air in several rooms of varying sizes.

• Finding the volume of the air between marbles in a jar by pouring water over them.

What can you do to prove that salt is matter and still exists after it has been dissolved in water?

• Boil the saltwater until the water evaporates leaving the salt behind.

• Freeze the saltwater and weigh it once it has frozen.

• There is no way to prove that salt is matter once it is dissolved in water.

• Remove all heat from the water so it can be seen more clearly.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following is an investigation that can provide evidence that air is matter?

• Using a balance to compare the mass of a bag with air and a bag without air.

• Using a balance to compare the mass of a bag and a rock.

• Using a graduated cylinder to compare the volume of a rock and a rock in water.

• There is no way to prove that air is matter.

How can adding air to a basketball prove that air is made of matter?

• You can see the particles of air going into the basketball.

• The air will not change the basketball.

• The air will make the basketball get smaller proving that air has mass.

• The air will take up space inside the basketball and all matter takes up space.

A student is doing an investigation with a capped syringe. Which of the following observations provides evidence that the air filling the syringe is matter?

• The plunger cannot be pushed all the way to the end.

• The students can see all the way through the syringe.

• The volume reads 5mL on the syringe.

• The student finds the mass of the syringe on a balance.

A student dissolved sugar in water. She knows that it is still there because when she tasted the water it was sweet. What does this prove?

• Matter can still exist even when you can't see it.

• Matter can disappear and never return.

• Matter is not real.

• Water is often sweet without any matter in it.

Some students placed a clear solution in a beaker and heated it for 40 minutes. Their observations are provided in the table. Evidence that the solution contained matter that could not be seen was observed during what time?

• 10 minutes

• 20 minutes

• 30 minutes

• 40 minutes

Tags

NGSS.MS-PS1-4

NGSS.MS-PS1-2

NGSS.MS-PS3-4

Which of the following is always true about the particles that make up matter?

• They can only be found in solid substances.

• They are too small to be seen with only our eyes.

• They are the same size in all substances.

• They are locked into regular arrangements.

Which state of matter has a definite shape and volume?

• Solid

• Liquid

• Gas

• Both A and B

Tags

NGSS.MS-PS1-4