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Round 1 - Science Bee 3rd Grade

Total questions: 28

Worksheet time: 14mins

Name
Class
Date
1.

Which of the following is a sense organ?

a)
Elbow
b)
Nose
c)

Tongue

d)
Liver
2.

The sun is an example of which of the following?

a)
comet
b)
moon
c)
planet
d)
star
3.

Skunks spray a strong-smelling liquid to _________.

a)
mark their territory
b)
attract mates
c)
defend themselves from predators
d)
cool themselves down
4.

What word describes a push or pull that moves an object?

a)

Force

b)

Inertia

c)

Motion

d)

Pressure

5.

Bats can fly in darkness because

a)

They can see objects in darkness

b)

They have big wings

c)

They generate flashes of light

d)

They generate ultrasonic sound waves

6.

Part of the plant that generates seeds

a)
stem
b)
leaf
c)
root
d)
flower
7.

Which of these does a frog mostly likely need in order to survive?

a)

A pond

b)

Rocks

c)

Soil

d)

Leaves

8.

What process occurs when water vapor cools and changes back into liquid water?

a)
Precipitation
b)
Condensation
c)
Sublimation
d)
Evaporation
9.

What is the outermost layer of the Earth called? 

a)
crust
b)
atmosphere
c)
core
d)
mantle
10.

What mineral is commonly used to make pencils? 

a)
Coal
b)
Quartz
c)
Diamond
d)
Graphite
11.

What type of eclipse occurs when the moon blocks the sun in Earth’s sky? 

a)
Solar eclipse
b)
Lunar eclipse
c)
Partial eclipse
d)
Total eclipse
12.

What type of energy do we hear when a bell rings?

a)
Light energy
b)
Heat energy
c)
Kinetic energy
d)
Sound energy
13.

Which state of matter is the least dense of the four listed and will always fill its container? 

a)
Gas
b)
Plasma
c)
Liquid
d)
Solid
14.

Which process helps yeast rise in bread by breaking down sugar?

a)

Fermentation

b)

Oxidation

c)

Photosynthesis

d)

Distillation

15.

Green plants are considered _____ on the food chain.

a)
Primary producers
b)

Decomposers

c)
Tertiary producers
d)

Consumers

16.

A machine with few or no moving parts that you apply just one force is ______

a)

human

b)

compound machine

c)

simple machine

d)

working machine

17.

Batteries are a type of _____ energy.

a)

Potential

b)

Kinetic

c)
Solar
d)
Nuclear
18.

Going to sleep during cold months _______.

a)

Migration

b)

Emigration

c)

Aestivation

d)

Hibernation

19.

What is true about a mixture?

a)

It is made of two or more things

b)

The parts keep their own properties

c)

The parts are not chemically combined

d)

All of the above

20.

Forces that act together on an object without changing its motion

a)
Unbalanced forces
b)
Net forces
c)
Opposing forces
d)
Balanced forces
21.

Which of the following best describes the force that acts opposite to the direction of motion and reduces the speed of moving objects?

a)

Gravitational force

b)

Frictional force

c)

Magnetic force

d)

Electric force

22.

What are some of the effects of El Nino?

a)

droughts

b)

crops don't grow

c)

flooding

d)

All of the above are effects of El Nino

23.

What causes a shadow to form?

a)

Light traveling in curves

b)

Reflection of light

c)

Light being absorbed

d)

Light being blocked by an object

24.
This layer of Earth is solid Iron and Nickel
a)
Outer Core
b)
Mantle
c)
Inner Core
d)
Crust
25.

Some animals have senses that humans do not have. These senses may have come about because they help the animals adapt to different environments and ways of life. Which of the following is an example of an animal using a sense that humans do not have?

a)

A monkey uses its sense of taste to decide which fruit is ripe.

b)

A bat uses echolocation to catch a flying insect.

c)

A bird uses its sense of hearing to find its family.

d)

A dog uses its sense of smell to find a bone.

26.

When exercising, your __________ system helps you get oxygen from the air.

a)

respiratory

b)

circulatory

c)

muscular

d)

nervous

27.

Which system breaks down food into minerals that your body can use?

a)

excretory

b)

circulatory

c)

respiratory

d)

digestive

28.
Why do flamingos form groups?
a)
to find specialized food
b)
to find a place to sleep
c)
to attack crocodiles
d)
for warmth