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3rd Grade PLTW Science Review

Total questions: 20

Worksheet time: 11mins

Name
Class
Date
1.

A car sitting at a red light would be an example of...

a)

an UNBALANCED force

b)

a BALANCED force

2.

Which is the force that moves the plane forward?

a)

Lift

b)

Weight

c)

Thrust

d)

Drag

3.

What is the net force? (Same arrows= add, opposite arrows= subtract)

a)

0 N

b)

5 N

c)

10 N

d)

15 N

4.

The wings on a plane help with which force?

a)

Lift

b)

Weight

c)

Drag

d)

Thrust

5.

Which is NOT a reason bees are on the decline?

a)

Poor Nutrition

b)

Plastic

c)

Parasites

d)

Pesticides

6.

Bees help us with many things. They help us with...

a)

Spreading Pollen

b)

Making Honey

c)

Producing Food

d)

All of the above

7.

Which bee is responsible for laying all of the eggs?

a)

Drone Bee

b)

Queen Bee

c)

Worker Bee

d)

King Bee

8.

Which animal's lifecycle does NOT go through metamorphosis (a complete change in form)?

a)

Dog

b)

Frog

c)

Butterfly

d)

Oyster

9.

A light switch is an example of which simple machine?

a)

Lever

b)

Wedge

c)

Wheel and Axle

d)

Incline Plane

10.

A slide is an example of what simple machine?

a)

Lever

b)

Wedge

c)

Pulley

d)

Incline Plane

11.

A flag pole is an example of which simple machine?

a)

Wedge

b)

Wheel and Axle

c)

Pulley

d)

Lever

12.

What is the name of the force that slows down your intended force? (example: your shoe on the carpet.)

a)

Friction

b)

Gravity

c)

Magnetism

d)

Wind

13.

What are the three factors that determine the weather?

a)

Wind, Temperature, Dirt

b)

Sunny, Cloudy, Snowy

c)

Windy, Breezy, Chilly

d)

Wind, Temperature, Precipitation

14.

What is the name of a person who studies the weather?

a)

Paleontologist

b)

Meteorologist

c)

Sportscaster

d)

Thermometer

15.

Which is not a climate zone?

a)

Jungle

b)

Polar

c)

Tropical

d)

Temperate

16.

What did we help save Grandma's garden from?

a)

A Tiger

b)

a Tornado

c)

Aphids

d)

a Flood

17.

What does the S stand for in STEM?

a)

Social

b)

Science

c)

Solve

d)

Sound

18.

What does the T stand for in STEM

a)

Technology

b)

Temperature

c)

Thermal

d)

Test

19.

What does the E stand for in STEM

a)

Electronic

b)

Electricity

c)

Engineering

d)

Exciting

20.

What does the M stand for in STEM?

a)

Math

b)

Music

c)

Magnets

d)

Miscellaneous