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Grade 8 Science Fall Midterm Review

Total questions: 45

Worksheet time: 24mins

Name
Class
Date
1.

Which is a nutrient that the body uses?

a)

Fibre

b)

Water

c)

Protein

d)

Energy

2.

Constipation (not being able to poop) can be relieved by adding which substance to your diet?

a)

Fat

b)

Fibre

c)

Calorie

d)

Protein

3.

What can't you find on the food label?

a)

Allergy Information

b)

Ingredient list

c)

Nutrition Information

d)

Food recipes

4.

Which nutrient do we test for using Biuret solution (and sodium hydroxide)?

a)

Carbohydrate

b)

Protein

c)

Fat

d)

Energy

5.

Which answer explains how weight gain occurs?

a)

Eating more calories than using while exercising

b)

Eating fewer calories than using while exercising

c)

Eating the same number of calories as using while exercising

d)

Eating half as many calories as using while exercising

6.

This process releases energy from food

a)

Digestion

b)

Absorption

c)

Ingestion

d)

Respiration

7.

The amount of energy your body needs depends on (choose multiple):

a)

Your age

b)

Your gender (boy or girl)

c)

The amount of food you eat

d)

How much physical activity you do

8.

Which material does your body only need in small quantities?

a)

Vitamins

b)

Water

c)

Fat

d)

Carbohydrates

9.

A problem caused by too much or too little of a nutrient is called:

a)

Puberty

b)

Heart disease

c)

Diabetes

d)

Malnutrition

10.

Which person would weigh the most?

a)

A person suffering from starvation

b)

An overweight person

c)

An obese person

d)

A skinny person

11.

Which body parts are part of the digestive tract(gut)?

a)

Mouth

b)

Anus

c)

Heart

d)

Stomach

12.

What happens during the process of digestion?

a)

Large molecules are turned into smaller molecules

b)

Insoluble molecules are turned in soluble molecules

c)

Soluble molecules are turned into insoluble molecules

d)

Small molecules are turned into larger molecules

13.

Digestive juices contain enzymes. Which does NOT describe what enyzmes can do?

a)

Enzymes are catalysts(speed up reactions)

b)

Enzymes create energy

c)

Enzymes break larger molecules into smaller ones

14.

Why does the small intestine need a large surface area?

a)

Bigger surface area means bigger holes for nutrients to go through the intestinal wall

b)

Bigger surface area means a higher rate of absorption of nutrients

c)

Bigger surface area happens as people grow

d)

Bigger surface area is always better.

15.

Which way is NOT a way that the small intestine increases surface area?

a)

Tightly folded structure to increase length

b)

Microvilli

c)

Villi

d)

attached to stomach

16.

Which are Kingdoms in organism classification?

a)

Animals

b)

Plants

c)

Fungi

d)

Protoctists

e)

Prokaryotes

17.

Plants with the same scientific name will have the same ...

a)

Genus name

b)

Species name

c)

Genus and species name

d)

Neither genus nor species name

18.

An area with high biodiversity will have

a)

A lot of organisms in the area

b)

A wide variety of organisms in the area

c)

Lots of biology in the area

d)

Lots of people in the area

19.

What are the different types of reproduction in organisms?

a)

Asexual reproduction

b)

Sexual reproduction

c)

Fast Reproduction

d)

Sexuality Reproduction

20.

In which situation would you get 'inherited variation'?

a)

Cross Pollination

b)

Self-pollination

c)

Asexual reproduction

d)

Cloning

21.

Which answer could have the information from 2 parents instead of just one?

a)

Male gamete

b)

Female gamete

c)

Zygote

d)

Sex cell

22.

Which parts would you only find on a male flower?

a)

Stigma

b)

Anther

c)

Filament

d)

Style

23.

What is the name of the female reproductive structure in flowers?

a)

Carpel

b)

Stamen

c)

Petal

d)

Stem

24.

Pollination occurs when a pollen grain reaches/sticks to the...

a)

Style

b)

Seed

c)

Stigma

d)

Sex cell

25.

What would I expect to find on insect-pollinated flowers but not wind-pollinated flowers?

a)

Ovary

b)

Anther

c)

Pollen

d)

Colourful Petals

26.

How would I make an estimate for the number of jellybeans in this jar?

a)

Count them all

b)

Take a sample and multiply my answer

c)

Guess

d)

Count as many as I can for 3 minutes and then guess

27.

Which is NOT a part of a plant embryo?

a)

Tiny shoot

b)

Food store

c)

Tiny flower

d)

Tiny root

28.

What are ways that plant seeds can be dispersed?

a)

Water

b)

Wind

c)

Explosion

d)

Being eaten by animals

29.

Which resource is not required for a seed to germinate?

a)

Sunlight

b)

Water

c)

Warmth

d)

Oxygen

30.

Which process is used by plants to make food?

a)

Respiration

b)

Photosynthesis

c)

Germination

d)

Digestion

31.

Which gas can be used as a fuel?

a)

Oxygen

b)

Nitrogen

c)

Helium

d)

Hydrogen

32.

What are the ways that energy can be transferred as in a reaction?

a)

Heat

b)

Light

c)

Feel

d)

Sound

33.

Which substance is not a hydrocarbon?

a)

Wood

b)

Oil

c)

Petrol

d)

Gas

34.

Complete combustion of a hydrocarbon will produce/transfer everything except...

a)

Carbon dioxide

b)

Soot

c)

Heat

d)

Water

35.

A hydrocarbon burning in the air is an example of which reaction

a)

Combustion

b)

Oxidation

c)

Combustion and Oxidation

d)

Neither Combustion nor Oxidation

36.

Which substance is a 'non-metal'?

a)

Carbon

b)

Zinc

c)

Magnesium

d)

Iron

37.

Which result is explained by the Law of Conservation of Mass?

a)

Reactants conserve themselves in a reaction

b)

Products are the same compounds as reactants

c)

Products have to be conserved

d)

The weight of the products will be the same as the weight of the reactants in a reaction

38.

Which variable do I need to create a 'fair experiment' ?

a)

Independent variable

b)

Dependent variable

c)

Control variable

d)

Personal variable

39.

Mr. Fielden wants to find out the fastest way to school so each day he takes a different bus route and records the time it takes to arrive at KCIS from his house. What is the independent variable?

a)

The bus route

b)

The traffic

c)

The time it takes to get to school

d)

The weather

40.

Mr. Fielden wants to find out the fastest way to school so each day he takes a different bus route and records the time it takes to arrive at KCIS from his house. What is the dependent variable?

a)

The bus route

b)

The traffic

c)

The time it takes to get to school

d)

The weather

41.

Mr. Fielden noticed that even when he takes the same bus route to school, some days it takes longer than others. What could he do to make it more of a 'fair test' and improve his results?

a)

Make sure the bus driver is always the same

b)

Make sure the traffic is always the same

c)

Make sure the time it takes to get to school is always the same

d)

Make sure the bus route is always the same

42.

Impurities in fuel and gases in the air during combustion in an engine produce products that contribute to

a)

Global warming

b)

Acid rain

c)

Droughts

d)

Floods

43.

Which pollutant is not controlled by a catalytic converter?

a)

Sulfur dioxide

b)

Carbon monoxide

c)

Nitrogen oxides

44.

Where does the Greenhouse Effect occur?

a)

The sun

b)

The ocean

c)

The land

d)

The atmosphere

45.

Which human actvity does not contribute to climate change?

a)

Burning oil in vehicles

b)

Burning hydrogen in vehicles

c)

Burning coal in vehicles

d)

Burning diesel in vehicles

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