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Revision Chapter 1-3

Total questions: 25

Worksheet time: 18mins

Name
Class
Date
1.

Which step of the scientific method is a summary of what we learned and either supports or disproves the hypothesis?

a)

Conclusion

b)

Hypothesis

c)

Purpose

d)

Experiment

2.

Which step of the scientific method uses an "If...Then..." statement to provide a possible answer to the question?

a)

Purpose

b)

Research

c)

Hypothesis

d)

Conclusion

3.

In which step of the scientific method do we test our hypothesis by following a specific list of steps?

a)

Purpose

b)

Experiment

c)

Analysis

d)

Hypothesis

4.

What is an educated guess, opinion, or explanation of an observation?

a)

Prediction

b)

Observation

c)

Inference

d)

Scientific question

5.

How does this animal protect himself against the enemies?

a)

It secretes bad odor.

b)

It has scales and gills.

c)

It releases black ink to escape from predators.

6.

Which of the following pair of animals and adaptation is correct?

a)

sea urchin - exoskeleton

b)

eagle - beak, and claws

c)

starfish - gills

d)

frog - sucking tube

7.

Which of the following pair shows incorrect adaptation?

a)

snake - a poisonous substance

b)

clam - fins

c)

porcupine - sharp quills

d)

mosquito - proboscis

8.

Loggerhead sea turtles are large turtles that live in the ocean and nest on the Florida coast. The female loggerhead sea turtle lays more than 100 eggs in the beach sand. How is laying so many eggs an important adaptation that helps these turtles to survive?

a)

Large nests of eggs help keep the eggs warm enough to allow more turtles to hatch.

b)

If many turtles hatch, they can help defend each other against predators in large numbers.

c)

The more eggs that are laid, the greater the chance that more turtles will live to become adults.

d)

A large number of eggs in one place makes it possible for the mother to lie on the eggs until they hatch.

9.

What are special characteristics of animals to protect themselves from extreme weather?

a)

Has thick fur

b)

Has thick fat layer

c)

Has hump

d)

Hibernate

10.

What are special behaviour of animals to protect themselves from extreme weather?

a)

Has thick fur

b)

Migrate

c)

Wallowing in mud

d)

Hibernate

11.

What is the function of thick fur?

a)

Trap air to reduce heat loss

b)

Protect the animals from hot weather

c)

As heat insulator and regulates body temperature

12.

Why animals have to migrate in order to protect themselves from extreme weather?

a)

To reproduce

b)

To obtain food

c)

To find mate

d)

To avoid enemies

13.
Recently, a family of bobcats moved into an area with a large rabbit population. What changes may occur in the ecosystem?
a)
The rabbit population may increase
b)
The rabbit population may decrease
c)
The rabbit population may increase first, then decrease
d)
The rabbit population will remain the same
14.
A population of mice lives in a barn community. A cat population has just joined the community. What will happen?
a)
Mouse and cat populations both go up?
b)
Mouse and cat populations both go down
c)
Mouse population goes down as cat population goes up
d)
Mouse population goes up as cat population goes down
15.
Which of the following is a producer?
a)
Maple tree
b)
Sunfish
c)
Bunny
d)
Bear
16.
What are animals called in a food chain?
a)
Producers
b)
Consumers
c)
Decomposers
d)
Plants
17.

Where do all life forms get their energy?

a)

Food

b)

Water

c)

Plants

d)

The Sun

18.

The red highlighted area is called what?

a)

Bird Cage

b)

Sternum

c)

Ribs

d)

Femur

19.

What is the name of this bone? It sits on top of your neck. It also protect your brain.

a)

Dome Piece

b)

Head

c)

Patella

d)

Skull

20.

Name this joint.

a)

Knee

b)

Ankle

c)

Shoulder

d)

Wrist

21.

What is a joint?

a)

A place where two bones meet

b)

The middle of a bone

c)

The end of a bone

d)

The spine

22.

Antara organ berikut, yang manakah mengepam darah ke seluruh badan?

Which of the following organs pumps blood to all parts of the body?

a)

jantung

Heart

b)

Otak

Brain

c)

Peparu

Lungs

d)

Ginjal

Kidney

23.

Organ X merupakan tempat pertukaran gas karbon dioksida dengan oksigen.

Organ X is a place for exchanging carbon dioxide and oxygen gases


Apakah organ X ?

What is organ X?

a)

Peparu

Lungs

b)

jantung

Heart

c)

Ginjal

Kidney

d)

Salur darah

Blood vessel

24.

Apakah nama bagi rangka utama yang bertanda P?

What is the name of the main skeleton labelled P?

a)

Tengkorak

Skull

b)

Tulang belakang

Backbone

c)

Tulang rusuk

Ribs

d)

Tulang tangan dan kaki

Limb bones

25.
What is the place where two bones meet?
a)
hinge
b)
bone
c)
spot
d)
joint