Planet earth
Earth in space
Adaptations
Flowering Plants
Forces
100

What is the layer of air around Earth called?

Atmosphere

100

How long does Earth take to orbit the Sun?

365 1/4 days

100

Why do camels have long eyelashes?

To protect eyes from sand

100

Which part of a flower produces fruits?  

The Ovary

100

What force pulls objects toward Earth?

Gravity

200

Which gas makes up most of the atmosphere?

Nitrogen

200

What direction does Earth orbit the Sun?

Anticlockwise

200

What adaptation helps a cactus survive in the desert?  

Stores water in its stem

200

What do petals do for a flower?

 Attract pollinators

200

What force slows things down on the ground?  

Friction

300

Name two types of pollution.  

Air Pollution and Water Pollution

300

What causes the seasons on Earth?

Eath's Tilt

300

How do penguins stay warm in cold climates?

Thick layers of fat & staying in groups

300

Name the male and female parts of a flower.

Stamen and carpel 

300

What is the upward force that keeps boats floating?

Upthrust

400

What happens during condensation in the water cycle?

Water vapor cools and becomes liquid

400

What is Earth's natural satellite?

Moon

400

Why do mangrove roots grow above water?

To breathe in waterlogged soil

400

How do bees help flowering plants reproduce?

They carry pollen between flowers.

400

Name two forces acting when you ride a bicycle.

Gravity, friction, applied force

500

Why is clean water important for living things?

It is needed to survive and stay healthy.

500

Why do satellites stay in orbit around Earth?

Earth's gravity pulls them while their speed keeps them moving.

500

How do Arctic foxes survive in the winter?

Thick fur and a small body shape to conserve heat.

500

What adaptation helps a cactus survive in the desert?

Stores water in its stem and has spines in place of leaves to reduce water loss

500

What force helps an airplane stay in the air?  

Air resistance

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