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Total questions: 60

Worksheet time: 2hrs 0mins

Name
Class
Date
1.
All of the carbon in existence is continually recycled in the carbon cycle
a)
True
b)
False
2.
How is the burning of fossil fuels related to global warming?
a)
Magic
b)
Fuels are hot
c)
Greenhouse effect
3.
Organisms that do not decompose can be buried and become what?
a)
water
b)
nutrients
c)
air
d)
fossil fuels
4.

If the plant population decreased, the amount of carbon in the atmosphere would _________.

a)

Stay the same

b)

Increase

c)

Decrease

5.

oxygen is a gas produced by _____ and used by ________

a)

plants and animals

b)

cars and houses

6.

Which describes the relationship between plants and animals in the carbon cycle?

a)

Plants produce and release oxygen that animals need

b)

Plants produce and release carbon dioxide that animals need

7.

Plants use ____________ to make their own food

a)

Water

b)

Sunlight

c)

Carbon dioxide

d)

All of these

8.

Which gas do plants release, that humans depend on for survival?

a)

Water

b)

Oxygen

c)

Sugar

9.

How do animals get carbon?

a)

By eating plants and or other animals.

b)

From the ground

c)

They do not get carbon from anywhere.

10.

Which of the following are fossil fuels?

a)

Coal, water, oil

b)

Oxygen, coal, oil

c)

Coal, Oil, Natural Gas

d)

None of the above

11.

Where can you find carbon?

a)

Only in Earth's atmosphere

b)

Inside all water molecules

c)

Inside the sun

d)

Inside every living thing on Earth

12.

When humans burn fossil fuels, most of the carbon quickly enters the _______________________ as carbon dioxide.

a)

Water

b)

Atmosphere

c)

Sun

d)

Ground

13.
How do living organisms return carbon to the atmosphere in the carbon cycle?
a)
respiration and photosynthesis
b)
 decomposition and respiration
14.

How do plants affect the air that animals and people breathe?

a)

Plants release pollution into the air

b)

Plants take in carbon dioxide and release oxygen

15.

The circulation of the element Carbon among Earth's atmosphere, land, oceans, and organisms is called _____________.

a)

the Carbon Cycle

b)

the Oxygen Cycle

c)

the Water Cycle

16.
Carbon can be found in...
a)
The atmosphere
b)
Soil
c)
Fossil fuels
d)
All of the above
17.

What is pollution?

a)

an unhealthy diet

b)

global warming

c)

is the process of making land, water, air or other parts of the environment dirty and not safe or suitable to use

d)

lands, people and plants

18.

Choose an air pollutant.

a)

Water

b)

Dogs

c)

Plants

d)

Cars

19.

What are two things fire was used for?

a)

Roasting marshmallows

b)

It looked pretty

c)

They did not use fire

d)

Keeping warm and scaring away animals

20.
In order to express ideas, early humans
a)
wrote letters
b)
painted in caves
c)
played music
d)
posted on Facebook
21.
Which of the following was considered a role of men during the Stone Age?
a)
hunting animals for food
b)
leading the community
c)
protecting the community
d)
All of the above
22.
Why is this period of time known as the Stone Age?
a)
People preferred using stones to build shelter
b)
Everybody lived in caves
c)
Tools were mostly made from stone
d)
The climate was always cold
23.

Early Humans were __________________. This is how they got their food

a)

Traders

b)

Hunters

c)

Gatherers

d)

Hunters and Gatherers

24.

Two stones rubbed together, led to the discovery of____________.

a)

Air

b)

Water

c)

Fire

d)

Wind

25.

Early man lived in ____________ to protect himself.

a)

Caves

b)

Houses

c)

Forest

d)

Bungalow

26.

What did Early human eat?

a)

Nuts

b)

Rice

c)

Fruits & Nuts

27.

What did early human wear?

a)

Leaves of trees

b)

Skin of Animals

c)

Both Leaves of trees & Skin of Animals

28.

What are tools used by the early humans?

a)

Hammer

b)

Stones

c)

Knife

29.

Early human settled near ___________

a)

river

b)

lake

c)

sea

30.

It is believed that the discovery of fire was an incident

True or False

a)

True

b)

False

31.

Humans are primates.

True or false?

a)

True

b)

False

32.

What is collective learning?

a)

A form of communication that uses symbols

b)

Relying on nature for sustenance; hunting, and gathering.

c)

The ability to share, preserve, and build upon ideas over time.

d)

A fundamental ability of living organisms that enables them to change from generation to generation, and become better suited to their environment

33.
True or False: A species with lots of information about its envioronment can exploit its surroundings more effectively. 
a)
True
b)
False
34.

a)
b)
c)
35.

Điền chữ thích hợp?

a)
b)
c)
36.
a)
b)
c)
37.
a)
b)
c)
38.

Đây là gì?

a)

quả

b)

quà

c)

quạ

d)

qua

39.

Điền g hay gh?

....ẹ đỏ

a)

g

b)

gh

40.

a)

ngô

b)

khô

c)

chô

d)

nhô

41.

a)

ngủ

b)

khủ

c)

nhủ

d)

chủ

42.

a)

Bé bị ngã.

b)

Bè bị ngã.

c)

Bé bị nhã.

d)

Bé bị khã.

43.

a)

chỉ

b)

nhỉ

c)

khỉ

d)

gỉ

44.

a)

nhổ cỏ

b)

khổ cỏ

c)

chổ cỏ

d)

ngổ cỏ

45.

a)

củ nghệ

b)

củ nhệ

c)

củ khệ

d)

củ chệ

46.

a)

Bé bê ghế.

b)

Bè bê ghề.

c)

Bè bê ghế.

d)

Bé bê nghế.

47.

a)

Chị bế bé.

b)

Khị bế bé.

c)

Nhị bế bé.

d)

Ghị bế bé.

48.

a)

ghế gỗ

b)

ghề gỗ

c)

nhế gỗ

d)

chế gỗ

49.

a)

nho

b)

nha

c)

cho

d)

kho

50.

a)

nhà

b)

nhá

c)

cha

d)

khà

51.

a)

khế

b)

nhế

c)

chế

d)

khề

52.

a)

giỏ cá

b)

giò cà

c)

giỏ cà

d)

giò chả

53.

a)

khỉ

b)

khí

c)

chỉ

d)

nhỉ

54.

a)

che ô

b)

nhe ô

c)

khe ô

d)

ce ô

55.

Emily is a baker. She bakes 24 loaves of bread and places them into 4 bags. How many loaves are in each bag?

a)
48
b)
60
c)
6
d)
4
56.
Abigail planted 30 pumpkin seeds equally in 5 rows.  How many pumpkin seeds did Abigail plant in each row?
a)
4
b)
5
c)
6
d)
8
57.

Tom went to the store and bought chairs. Each chair cost $5. How much money did Tom spend on the 4 chairs he bought?

a)
$20
b)
$1
c)
$15
d)
$10
58.

18 + 8=

a)
10
b)
25
c)
26
d)
27
59.

In my school box, I have 27 new crayons and 31 old crayons. How many crayons do I have in all?

a)

68

b)

94

c)

58

d)

85

60.

There are 15 rocks in my bucket. If I add 4 more rocks, how many rocks do I have in all?

a)

19

b)

54

c)

22

d)

17

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