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Biblioteka

Course Final - Science 14

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Posljednje ažuriranje almost 4 years ago
22 questions
1
1
6
1
2
1
1
1
1
2
1
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2
5
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3
3
Pitanje 1
1.

List the meaning of each of the WHMIS symbols shown

Pitanje 2
2.

How do HHPS symbols differ from WHMIS?

Pitanje 3
3.

Match the state change described with its proper terminology.

Stavka koja se može prevućiarrow_right_altOdgovarajuća stavka

Solid to liquid

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Evaporation

Liquid to gas

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Deposition

Solid to gas

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Freezing

Liquid to solid

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Melting

Gas to liquid

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Sublimation

Gas to solid

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Condensation

Pitanje 4
4.

How could you determine if a substance is pure or a mixture?

Pitanje 5
5.

Label what each component in the diagram below tells us about water molecules.

Pitanje 6
6.

How does a solution differ from a mechanical mixture?

Pitanje 7
7.

How can we increase the concentration of a solution. You can use a diagram to help support your answer.

Pitanje 8
8.

Match the pH provided with the type of solution it represents.

Stavka koja se može prevućiarrow_right_altOdgovarajuća stavka

pH = 14

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Neutral

pH = 7

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Acid

pH = 2

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Base

Pitanje 9
9.

Describe one factor that can speed up the process of corrosion.

Pitanje 10
10.

What is friction? Why does it create problems for machinery?

Pitanje 11
11.
Pitanje 12
12.

Match the types of heat transfer with the example that represents it.

Stavka koja se može prevućiarrow_right_altOdgovarajuća stavka

Radiation

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A person burns their hand on a running engine.

Conduction

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As water is heated, the hot water rises and pushes the cold water down

Convection

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The suns rays warm up sand on a beach.

Pitanje 13
13.

Describe how you would keep a thermos of hot chocolate warm.

Pitanje 14
14.

Label the plant cell diagram.

Pitanje 15
15.

Why do our cells need oxygen?

Pitanje 16
16.

How does the energy in food get sent to your cells? Use as much detail as possible.

Pitanje 17
17.

Why is it important to have a proper diet that includes carbohydrates, lipids and proteins?

Pitanje 18
18.

All energy comes from:

Pitanje 19
19.

Explain the process by which energy is passed down the food chain shown:

Pitanje 20
20.

Why is there more energy available to organisms at the bottom of a food chain compared to organisms at the top?

Pitanje 21
21.

Determine if the factors listed are biotic or abiotic factors in an ecosystem.

Biotic

Abiotic

Sunlight

pH of soil

decomposers

humidity

predators

Pitanje 22
22.

Describe the water cycle using the diagram provided.