Matter Big Idea 8-9

Which of the following speeds up the dissolving process of Kool-Aid?

• adding ice cubes

• stirring

• putting it in the refrigerator

• Putting it in a pitcher

Which of the following describes a chemical change?

• shaking a soda can and opening it

• drawing on the board

• toasting a tortilla

• stirring coffee so the sugar dissolves

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Jessica measured the volume of a substance witha graduated cylinder. What is she most likely measuring?

• water

• air

• ice

Select three statements that are true about atoms?

• Magnification is needed in order to see atoms

• Atoms do not have mass.

• All matter is made up of atoms

• Scientific tests provide evidence for the presence of atoms

Tags

NGSS.MS-PS1-1

True or False: If the temperature increases, that means that the temperature is hotter.

• True

• False

Tags

NGSS.MS-PS3-4

True or False: If the water temperature decreases, that means that the temperature of the water will be colder.

• True

• False

Tags

NGSS.MS-PS1-4

Why is it better to dissolve substances in higher temperatures?

• Substances dissolve faster with increased surface area.

• Substances dissolve faster with increased liquid volume

• Substances dissolve faster with increased stirring

• Substances dissolve faster with increased temperatures.

Tags

NGSS.MS-PS1-4

Which physical change happens as a result of a decrease in temperature?

• melting

• boiling

• condensation

• evaporation

Tags

NGSS.MS-PS1-4