Science 8 - Unit A Practice

Science 8 - Unit A Practice

8th Grade

11 Qs

quiz-placeholder

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Science 8 - Unit A Practice

Science 8 - Unit A Practice

Assessment

Quiz

Science

8th Grade

Hard

Created by

Ali Piwowar

Used 41+ times

FREE Resource

11 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Using the nutritional label above, calculate the concentration of sugar in one serving of juice.

0.10 g per 100 mL

10 g per 100 mL

25 g per 100 mL

225 g per 100 mL

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

The most likely reason for why Jordan's sugar took longer to dissolve is

Sugar dissolves faster in cold water

Jordan's surgar was cubed

Taylor's container was larger

Taylor didn't stir their coffee

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

The milk has a ___i___ viscosity than the shampoo because the milk has ___ii___ resistance to flow.

The statement above is best completed by:

i: lower

ii: more

i: lower

ii: less

i: higher

ii: more

i: higher

ii: less

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Which metal is the student most likely working with?

Aluminum

Copper

Gallium

Tin

Answer explanation

mass = 22.2 g

You must find the displacement of water.

10 mL - 6 mL = 4 mL

To find the density, divide the total mass by the total amount of water that was displaced.

22.2 g / 4 mL = 5.6 g/mL. Gallium is the closest at 5.91 g/mL

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

In order for a liquefier to convert hydrogen gas to its liquid state, the liquefier most likely

runs electricity through the gas

exerts pressure to compress the gas

cools the gas to its boiling point

dissolves the gas in water

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Which of the following is the primary advantage of converting liquifying hydrogen before

transport?

Hydrogen gas is dangerous to transport.

Hydrogen is only useful in its gaseous state.

Trucks can carry more hydrogen as a liquid than a gas.

Liquid hydrogen doesn't require special storage equipment.

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Carbon dioxide gas can be dissolved in water because the particles in water are ___i___ than the particles in carbon dioxide, resulting in water having a ___ii___ density, compared to the carbon dioxide gas.

The statement that is best completed by the answers are:

i: closer together

ii: lower

i: further apart

ii: greater

i: closer together

ii: greater

i: further apart

ii: lower

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