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Jr Hacks 2021-Grade 4 Quiz

Total questions: 39

Worksheet time: 39mins

Name
Class
Date
1.

The main source of energy comes from the _______________.

a)

sun

b)

potential energy

c)

kinetic energy

d)

solar system

2.

Our skeleton is made up from . . .

a)

muscles

b)

bones

c)

blood

d)

fingers

3.

Which part of your brain protects the brain?

a)

Ribs

b)

Backbone

c)

Skull

d)

Head

4.

Who is the producer in this food chain?

a)

(a)The rabbit

b)

(b)The grass

c)

(c) The fox

d)

d)There is no such thing as a producer

5.

A ___________ makes its own energy and begins the food chain.

a)

(a) consumer

b)

(b)producer

c)

(c) herbivore

d)

(d) decomposer

6.

How many poles does a magnet have?

a)

1

b)

2

c)

3

d)

4

7.

What is this animal?

a)

a vertebrate

b)

an invertebrate

8.

What is this animal?

a)

a vertebrate

b)

an invertebrate

9.

The two main functions of a root are to bring nutrients to the plant and to _____

a)

Grow more plants

b)

Spread to new places

c)

Hold the plant in the place

d)

Protect it from predators

10.

Which of the following can live on both water and land?

a)

Frog

b)

Fish

c)

Bird

d)

Dog

11.

Animals that live in/on ___ are called arboreal animals.

a)

Water

b)

Trees

c)

Land

d)

Air

12.

Largest Mammal in the world:

a)

Lion

b)

Elephant

c)

Whale

d)

Dog

13.

What does NASA Stand for

a)

New Agency of Space Artifacts

b)

National Aeronautics and Space Agency

c)

National Aeronautics and Space Administration

d)

National Art and Space Agency

14.

What is the ISS

a)

Indian Space Station

b)

Irish Solar Soccer

c)

International Space Shuttle

d)

International Space Station

15.

A duck has webbed feet to help it

a)

swim

b)

walk

c)

eat

d)

attack other ducks

16.

Write 2000 + 400 + 50 + 6 in standard/short form

a)

2546

b)

2000400506

c)

2456

d)

2654

17.

Which of the shapes are a quadrilateral

a)

trapezoid

b)

heart

c)

star

d)

pentagon

18.

What are 3 states of matter?

a)

solid, liquid, gas

b)

light, liquid, gas

c)

gas, liquid, balloons

d)

solid, air, wind

19.

Alexa wants to cover her rectangular floor with carpet. If the dimensions of the floor are 6m x 4m how much carpet will Alexa need?

a)

24 m

b)

24 m2

c)

24 mm2

d)

24 cm

20.

What part of the body helps you move?

a)

eyes

b)

pancreas

c)

muscles

d)

lungs

21.

what helps pump blood through the entire body?

a)

kidney

b)

stomach

c)

lungs

d)

heart

22.

Finding the sum of two numbers means:

a)

adding

b)

multiplying

c)

dividing

d)

subtracting

23.

What is the closest planet to the Sun?

a)

Jupiter

b)

Mercury

c)

Venus

d)

Earth

24.

What star shines in the day and provides light?

a)

Sun

b)

Venus

c)

Mars

d)

Moon

25.

What is the largest planet in the solar system

a)

Sun

b)

Saturn

c)

Jupiter

d)

Earth

26.

What part of the plant conducts photosynthesis?

a)

Trunk

b)

Leaf

c)

Branch

d)

Root

27.

What would happen to water at the temperature -5oC

a)

Melt

b)

Boil

c)

Evaporate

d)

Freeze

28.

Which of the following is not a living thing

a)

dog

b)

onion

c)

worm

d)

sand

29.
The answer to a multiplication problem is called....
a)
sum
b)
product
c)
quotient
d)
difference
30.
Which shows 64,879 in expanded form?
a)
6+4+8+7+9
b)
600,000+4,000+80+79
c)
60,000+4,000+800+70+9
d)
60,000+400+80+70+9
31.

What is 58,689 rounded to the nearest ten thousand?

a)

60,000

b)

59,000

c)

50,000

d)

58,000

32.

I am a 4 digit number, I am 4,000 rounded to the nearest thousand. I am odd number. My tens digit is even. What number I am?

a)

3,782

b)

3,952

c)

3,295

d)

3,943

33.
What is finding and fixing errors in programs?
a)
Debugging
b)
Program
c)
Bug
d)
Code
34.

Code is...

a)

when it's not warm.

b)

the dog from Garfield.

c)

a song or poem dedicated to someone.

d)

specific instructions in a computer program.

35.

What do we call the person who writes the instructions for the computer to complete a task?

a)

architect

b)

coder

c)

Bob

d)

composer

36.

What is an error in a program that stops the program from running as expected?

a)

Algorithm

b)

Program

c)

Bug

d)

Code

37.
What is the action of doing something over and over again?
a)
Loop
b)
Persistence
c)
Program
d)
Code
38.

A good code/program must be

a)

Detailed and short

b)

Hard to understand

c)

Very long

39.

Imagine writing a program that instructs a bird on how to take off, fly and land, what code can I easily loop/repeat?

a)

Lift off

b)

Flap wings

c)

Land

d)

Lay eggs