Matter (BI.8-9) Practice

At a candy store, Sam bought a scoop of hard candy for one dollar and his brother James bought a scoop of jelly beans for 50 cents. However, the clerk accidentally put all the candy into one bag. How will Sam and James be able to separate the hard candy from the jelly beans?

• sort the candy by cost and shape

• sort the candy by size and shape

• sort the candy by color and cost

• sort the candy by flavor and size

How are solids different from other states of matter?

• The shapes of solids are definite.

• The volume of solids depends on its container.

• The mass of solids is greater than liquids or gases.

• The shapes of solids can be affected by temperature.

What is the relationship, if any, of temperature to chemical changes?

• constant temperature prevents chemical changes

• temperature has no effect on the rate of chemical changes

• increasing temperature usually causes chemical changes to slow down

• increasing temperature usually causes chemical changes to happen faster

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Renee likes to make iced tea at home. She likes it sweet, so when she makes a batch, she adds sugar to it while it is still hot. Which of these is the scientific reason that she does this?

• Sugar does not dissolve in cold water.

• Sugar dissolves in water more easily when the water is hot.

• Renee does not want the sugar to dissolve because she wants to taste it in the tea.

• The rest of the sugar will dissolve more easily when the tea is cold.

Tags

NGSS.MS-PS1-4

A box of fine sewing pins has been accidentally spilled in a pile of sand. Which of these would be the least effective way to separate the pins from the sand?

• Wash the sand away with a strong force of water.

• Use a magnet to separate pins from the sand.

• Spread out the sand and sort out the pins by shape.

• Spread out the sand and shine light on it to look for the pins.

A chef combines ingredients in a pan and bakes them in the oven. The batter turns into cake.

What kind of change does the heat cause?

• a reversible physical change

• a reversible chemical change

• a permanent physical change

• a permanent chemical change

Tags

NGSS.MS-PS1-4

NGSS.MS-PS1-2

NGSS.MS-PS1-5

The properties of substances are different depending on which state (solid, liquid, or gas) they are in. Which of these statements is true of substances in the liquid state?

• They are all colorless.

• They have definite volume.

• They are all of a definite shape.

• They have less mass than when in solid form.

At a landscaping supply company, truckloads of white sand and black river rocks have accidentally become mixed. What is the best way to separate them without ruining both loads?

• Brush away the lighter-colored sand.

• Pick the rocks out of the sand by hand.

• Use a screen to separate the two materials.

• Use a large magnet to separate the rocks from the sand.

Tags

NGSS.MS-ETS1-2

NGSS.MS-ETS1-3

Which of the following is true of the particles in gases?

• They are held closely together.

• They are farther apart than they are in either liquid or solids.

• They are arranged in the same way as the particles in liquids.

• They are arranged in the same way as are the particles in solids.

Which of these is an example of a chemical change caused by temperature?

• making lemonade

• melting ice cubes

• cooking pancakes

• freezing ice pops

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4