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Science

8th Grade

NGSS covered

Used 55+ times

Oceans/Properties of Water
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25 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Media Image

What two elements make up water?

Helium and oxygen
Hydrogen and oxygen
helium and carbon
oxygen and carbon

Tags

NGSS.MS-PS1-1

2.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Media Image

What word describes when water is attracted to other substances?

cohesion
adhesion
capillary action
surface tension

3.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Media Image

Attractions between the negative Oxygen atom of one water molecule and the positive Hydrogen atom of another water molecule are called

Covalent bonds
Ionic bonds
Polar bonds
Hydrogen bonds

Tags

NGSS.MS-PS1-5

4.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Why does ice float?

As water freezes, it expands and its density decreases.
As water freezes, it takes up more hydrogen from the atmosphere, causing it to have a greater buoyancy.
As water freezes, air becomes trapped between the hydrogen bonds of water molecules.
As water freezes, it takes up more oxygen from the atmosphere, causing it to have a greater buoyancy.

5.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Water is a universal solvent because it...

It can be found anywhere
It freezes when it gets cold
floats when frozen
Dissolves most substances

6.

MULTIPLE CHOICE QUESTION

2 mins • 5 pts

Media Image

When water molecules stick easily to other water molecules, this is called what?

cohesion
adhesion
solution
polar molecule

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The definition of salinity is...

how much salt you put on food

the amount of salt in water

how much salt there is in air

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