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Control final

Control final

Assessment

Presentation

Science

3rd Grade

Practice Problem

Medium

Created by

LORENA MUNUERA

Used 1+ times

FREE Resource

25 Slides • 11 Questions

1

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A machine is an
instrument that

makes work

easier.

Which machines

can you see?

What are Machines?

We can see a clock, a
computer, a mobile

phone, a pencil

sharpener, scissors and

a skateboard.

3

Multiple Choice

What is a machine?

1

It is an animal that makes work easier

2

It is an instrument that makes work very difficult

3

It is an instrument that makes work easier

4

It is a computer

4

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Machines
can be...

Simple

Complex

What are Machines?

5

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Simple machines help

us work easier.

They often have

1 or 2 parts

6

Fill in the Blanks

Type answer...

7

Multiple Select

Machines get energy from...

1

Electricity

2

People

3

Burning fossil fuels

4

Food

5

The Sun , wind and water

8

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Pulley

9

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How does the pulley help us?

The pulley helps us by lifting an
object from bottom to top

Crane

Flag

Well

10

Multiple Choice

How does the pulley help us?

1

Lifting objects

2

Moving objects

3

Cutting objects

4

Lifting heavy objects

11

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Wheel & Axle

12

Multiple Choice

How does a wheel and axle help us?

1

By cutting and object

2

By lifting and object

3

By moving objects

4

By playing with objects

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How does a Wheel and Axle help us?

A wheel and axle helps us by moving
objects from one place to another.

Wheelchair

Bicycle

14

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Lever

15

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How does a lever help us?

Levers helps us by lifting heavy
objects easily.

Seesaw

Wheelbarrow

16

Multiple Choice

How does a lever help us?

1

By lifting an object

2

By lifting heavy objects

3

By cutting and object

4

By moving an object

17

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Wedge

18

Multiple Choice

How does a wedge help us?

1

By cutting an object

2

By lifting an object

3

By keeping an object together

4

By moving an object

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Wedges help us by
cutting an object.

How do Wedges help us?

Teeth

Axe

Knife

Scissors

20

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Screw

21

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How do Screws help us?

Screws help us by

lifting things or
keeping them

together.

Light bulb

Screw

22

Multiple Choice

How does a screw help us?

1

By moving an object

2

By cutting an object

3

By rolling an object

4

By lifting things or keeping them together

23

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Inclined Plane

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How do inclined PLanes help us?

Inclined plane helps us by

rolling an object to a
higher or lower area.

Slide

Ramp

Ladder

25

Multiple Choice

How does an inclined plane help us?

1

By cutting an object

2

By rolling an object

3

By moving an object

4

By lifting an object

26

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Complex machines
help us work easier.

They have
a lot of parts

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A computer is a complex machine

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A car is a complex machine

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A television is a complex machine

30

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A bicycle is a complex machine

31

Open Ended

Write 3 examples of complex machines

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Some machines use
energy from electricity

All machines need energy to work

33

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Some machines use
energy from people

All machines need energy to work

Tools

34

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Some machines use
energy from the Sun,
wind and water

All machines need energy to work

Wind turbines

35

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Some machines use
energy from burning
fossil fuels

All machines need energy to work

36

Fill in the Blanks

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