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In the experiment, the ______________ tablet dissolved the fastest because it had the ________________.

• crushed & highest surface area

• crushed & highest temperature

• whole & highest surface area

• quartered & lowest concentration.

Tags

NGSS.MS-PS1-2

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Complete the sentence:

____________ solution(s) have the same concentrations because the amounts of water and solutes were the same.

• The whole tablet

• The crushed tablet

• All three

Tags

NGSS.MS-PS1-2

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Which two experiments would examine ways to change the rate of dissolution? (choose all that are correct)

• Use crushed, quartered and whole tablets with varying sizes.

• Use a crushed, quartered, and whole tablet, and measure the amount of water evaporated following heating.

• Use full tablets in each trial but use a different temperature of water for each container.

• Use full tablets in each trial, but increase the amount of water used to dilute the Vitamin C tablet.

• Use full tablets in each trial and stir each tablet a different number of times when dissolving.

Tags

NGSS.MS-PS1-2

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Fill in the blank: Images A & B are both _________ because they both contain two atoms bonded together.

Tags

NGSS.MS-PS1-1

Image A is an _________ because it only has one type of atom.

Tags

NGSS.MS-PS1-1

Image B is an _________ because it only has more than one type of atom.

Tags

NGSS.MS-PS1-1

Which beaker has higher concentration?

• Left

• Right

Tags

NGSS.MS-PS1-2

Which beaker is diluted?

• Left

• Right

Tags

NGSS.MS-PS1-2

Which beaker is concentrated?

• left

• right

Tags

NGSS.MS-PS1-2

Which beaker is diluted?

• left

• right

Tags

NGSS.MS-PS1-2