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G4 Science Review

Total questions: 45

Worksheet time: 23mins

Name
Class
Date
1.

1. Solar panels change energy from .

a)

Chemical to thermal

b)

Potential to mechanical

c)

Radiant to electrical

d)

Kinetic to chemical

2.

1. Sources of radiant energy include .

a)

Running, a potato, and gasoline

b)

A microwave, fire, and water vapor

c)

People, coal, and a blender

d)

Stars, the Sun, and a lamp

3.

energy is a type of radiant energy.

a)

Thermal

b)

Solar

c)

Potential

d)

Kinetic

4.

Solar energy is a renewable free source.

a)

True

b)

False

5.

Heat is another name for

a)

thermal energy

b)

electrical energy

c)

mechanical energy

d)

gravitational energy

6.

The roots...

a)

take water from the roots to the leaves.

b)

hold the plant and take in water and nutrients.

c)

make the seed.

7.

There are five stages in the lifecycle of a flowering plant.


three of these stages are

  1. Seed production
  2. Seed Dispersal
  3. Germination
a)

Pollination and fertilisation

b)

Growth and breathing

8.

The male part of the flower is_____

a)

Stamen

b)

Pistil

c)

Stigma

9.

A plant produces seeds in its ..... when all parts of the plant are healthy.

a)

leaves

b)

roots

c)

flowers

10.

Part of the plant that is long, transport nutrients, water and keep the plant stable in the ground.

a)

Roots

b)

Stem

c)

Petals

d)

Leaves

11.
What do the leaves of a plant do?
a)
They make the food for the plant.
b)
They soak up the water from the ground.
c)
They deliver water to the other parts of the plants
d)
They make seeds
12.
True or False: All plants flower.
a)
True
b)
False
13.
What gives plants the power to make their own food?
a)
the sun
b)
insects
c)
seeds
d)
the flower
14.
How could a plant spread its seeds?
a)
An animal could eat the fruit and spread the seeds
b)
Seeds could float away in the wind
c)
The seed could get stuck in an animals fur and be carried to a new place.
d)
All of the above
15.
Pollination in the way plants_____________.
a)
make food
b)
absorb minerals
c)
absorb sunlight
d)
create new seeds
16.
Why do plants make and spread seeds?
a)
to create food for animals
b)
to drink up the nutrients
c)
to make more plants
d)
to make food
17.

any change in an organism’s environment that

causes a response is ................................

a)

Photosynthesis

b)

cellular respiration

c)

Stimuli

d)

Tropism

18.

This example for

a)

Internal stimuli

b)

Thigmotropism

c)

Phototropism

d)

no answer correct

19.
A plant growing in response to the sunlight. 
a)
Gravitropism 
b)
Phototropism
c)
Thigmotropism
d)
Hydrotropism
20.

Sun Flowers are called Sun trackers Why?

a)

Gravitropism

b)

Phototropism

c)

Thigmotropism

d)

Heliotropism

21.
Cause: Effect::
a)
homeostasis : stimulant
b)
reflex : response
c)
response : fever
d)
stimulus : response
22.

As temperature increases, molecules _____________

a)

move slower

b)

move the same

c)

move faster

d)

stop moving

23.

Thermal energy always moves from hot to cold.

a)

true

b)

false

24.

What is a unit of temperature?

a)

Celsius

b)

Joule

c)

Calorie

d)

Pizza

25.
To measure the temperature difference between two cups of water, you would use a _____.
a)
measuring cup
b)
ruler
c)
thermometer
d)
balance scale
26.

Which substance will conduct the least amount of heat?

a)

glass

b)

copper

c)

plastic

d)

aluminum

27.

Which is an example of radiation?

a)

boiling a pot of noodles for dinner

b)

getting hot from lying in the sun

c)

feeling warm while taking a shower

d)

burning yourself after touching a hot plate

28.

Which is the best example of conduction?

a)

boiling a pot of water

b)

feeling heat from a fireplace

c)

a hot air balloon rising and falling

d)

touching a hot handle and getting burned

29.

How does heat energy from the Sun reach Earth?

a)

radiation

b)

solar wind

c)

conduction

d)

convection

30.

After fertilisation, the ovary develpos into a

a)

seed

b)

fruit

c)

embyro

d)

zygote

31.

What is the function of cotyledon?

a)

proctect the seed

b)

small holes that enable water and air to enter the seed

c)

stores food

d)

embryo that develops into root

32.

Define the term seed germination .

a)

This is the growth of a shoot

b)

process where an embryo sprouts from a seed

c)

the growth of a plant

33.
The seed is protected by an outer covering called:
a)
cotyledon
b)
embryo
c)
seed coat
d)
germination
34.
Roots grow downward to anchor the seed. 
a)
True
b)
False
35.
What does the word GERMINATE mean?
a)
it has germs
b)
life span
c)
begins to grow 
d)
dies
36.
Light travels
a)
around corners
b)
in a straight line
37.
All of the following are sources of light except...
a)
the sun
b)
a light bulb
c)
fire
d)
the moon
38.

When white light passes through a prism, it is broken apart into

a)

water

b)

air

c)

rainbow colors

d)

a straw

39.

Which answer is NOT true of a leaf?

a)

Surrounds the seed of a flowering plant

b)

Grows out of the stem

c)

Where a plant makes food

d)

Contains chlorophyll for photosynthesis

40.

These tubes inside the stem transport the water and nutrients from photosynthesis throughout the plant.

a)

chlorophyll and chloroplast

b)

guard cell and stomata

c)

xylem and phloem

41.

When something begins to grow and sprouts into a new plant

a)

fertilization

b)

germination

c)

pollination

d)

dispersal

42.

Both animal and plant cells has mitochondria

a)

TRUE

b)

FALSE

43.

Transfers heat through direct contact

a)

conduction

b)

radiation

c)

convection

d)

transmission

44.

How many parts does a seed have?

a)

1

b)

2

c)

3

d)

4

45.

What are atoms of the sun called?

a)

photons

b)

protons

c)

electrons

d)

big tastee

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