Earth's History for 1st Graders: Explore Our Planet's Past

Question 1

What kind of living thing was the first to appear on Earth?

Accepted Answer

Bacteria

Answer

Plants

Answer

Animals

Answer

People

Question 2

Which of these is a fossil?

Accepted Answer

A bone

Answer

A leaf

Answer

A rock

Answer

Water

Question 3

What was the name of the supercontinent that existed long ago?

Accepted Answer

Pangea

Answer

Gondwana

Answer

Laurasia

Answer

Antarctica

Question 4

What is the name of the layer of air that surrounds Earth?

Accepted Answer

Atmosphere

Answer

Hydrosphere

Answer

Geosphere

Answer

Biosphere

Question 5

Which of these is a resource that can be replaced naturally?

Accepted Answer

Water

Answer

Oil

Answer

Coal

Answer

Natural gas

Question 6

What is the process called when plants use sunlight to make their food?

Accepted Answer

Photosynthesis

Answer

Respiration

Answer

Combustion

Answer

Digestion

Question 7

What is the name of the planet we live on?

Accepted Answer

Earth

Answer

Mars

Answer

Jupiter

Answer

Saturn

Question 8

How did Earth start?

Accepted Answer

From gas, dust and rocks that came together

Answer

When a giant star exploded

Answer

When a giant rock hit another planet

Question 9

Which of these is NOT a way that Earth has changed over time?

Accepted Answer

The sun has become hotter

Answer

Continents have moved

Answer

The air around Earth has changed

Question 10

What is the name of the layer of air that surrounds Earth?

Accepted Answer

Atmosphere

Answer

Hydrosphere (water)

Answer

Geosphere (rock)

Question 11

What is a fossil?

Accepted Answer

The preserved remains or traces of ancient living things

Answer

A leaf

Answer

A rock

Question 12

When did dinosaurs live?

Accepted Answer

Mesozoic Era (Age of Dinosaurs)

Answer

Cenozoic Era (Age of Mammals)

Answer

Paleozoic Era (Age of Amphibians)

Question 13

What is a natural disaster?

Accepted Answer

A sudden event caused by nature, like an earthquake or a hurricane

Answer

A traffic accident

Answer

A house fire

Question 14

Where does Earth get most of its energy?

Accepted Answer

The sun

Answer

The moon

Answer

Inside the Earth

Question 15

Which planet do we live on?

Accepted Answer

Earth

Answer

Mars

Answer

Jupiter

Answer

Saturn

Question 16

How many years ago was Earth formed?

Accepted Answer

4.5 billion years ago

Answer

100 million years ago

Answer

1 billion years ago

Answer

10 billion years ago

Question 17

What was the first living thing on Earth?

Accepted Answer

Bacteria

Answer

Mammals

Answer

Dinosaurs

Answer

Plants

Question 18

What event caused the dinosaurs to disappear?

Accepted Answer

A giant meteor hitting Earth

Answer

A volcanic eruption

Answer

A flood

Answer

A disease

Question 19

What is the largest ocean on Earth?

Accepted Answer

Pacific Ocean

Answer

Atlantic Ocean

Answer

Indian Ocean

Answer

Arctic Ocean

Question 20

What is the name of the layer of gases that surrounds Earth?

Accepted Answer

Atmosphere

Answer

Hydrosphere

Answer

Geosphere

Answer

Biosphere

Question 21

What makes Earth spin like a top?

Accepted Answer

Rotation

Answer

Revolution

Answer

Inclination

Answer

Precession

Question 22

What causes day and night?

Accepted Answer

Earth spinning on its axis

Answer

Earth moving around the Sun

Answer

The moon's pull

Answer

The sun's heat

Question 23

What are the big pieces of land on Earth called?

Accepted Answer

Continents

Answer

Oceans

Answer

Mountains

Answer

Lakes

Question 24

How do plants make their own food?

Accepted Answer

Photosynthesis

Answer

Respiration

Answer

Digestion

Answer

Excretion

Question 25

What is Earth mostly made of?

Accepted Answer

Rock

Answer

Water

Answer

Air

Answer

Fire

Question 26

About how long ago was Earth formed?

Accepted Answer

About 4.6 billion years ago

Answer

About 500 years ago

Answer

About 5,000 years ago

Answer

About 500 million years ago

Question 27

What is the name of the first type of living thing that appeared on Earth?

Accepted Answer

Bacteria

Answer

Dinosaurs

Answer

Fish

Answer

Plants

Question 28

What event is believed to have caused the extinction of the dinosaurs?

Accepted Answer

Asteroid or comet impact

Answer

Volcanic eruptions

Answer

Climate change

Answer

Disease

Question 29

What is the name of the icy period in Earth's history?

Accepted Answer

The Ice Age

Answer

The Stone Age

Answer

The Bronze Age

Answer

The Iron Age

Question 30

What process breaks down rocks to form soil?

Accepted Answer

Weathering

Answer

Erosion

Answer

Glaciation

Answer

Volcanoes

Question 31

What is the name of the layer of gases that surrounds Earth?

Accepted Answer

The atmosphere

Answer

The hydrosphere

Answer

The lithosphere

Answer

The biosphere

Question 32

Which is the largest ocean in the world?

Accepted Answer

Pacific Ocean

Answer

Atlantic Ocean

Answer

Indian Ocean

Answer

Arctic Ocean

Question 33

What is the name of the highest mountain above sea level?

Accepted Answer

Mount Everest

Answer

Mount Kilimanjaro

Answer

Mount Fuji

Answer

Mount Denali

Question 34

Long ago, all the continents were joined together in a giant landmass. What was the name of this supercontinent?

Accepted Answer

Pangea

Answer

Gondwana

Answer

Laurasia

Answer

Eurasia

Question 35

When hot, melted rock cools and hardens, what kind of rock is formed?

Accepted Answer

Igneous

Answer

Sedimentary

Answer

Metamorphic

Answer

Fossil

Question 36

When did dinosaurs live?

Accepted Answer

Mesozoic Era

Answer

Paleozoic Era

Answer

Cenozoic Era

Answer

Neolithic Era

Question 37

Which is the largest ocean on our planet?

Accepted Answer

The Pacific Ocean

Answer

The Atlantic Ocean

Answer

The Indian Ocean

Answer

The Arctic Ocean

Question 38

What is the name of the force that pulls us down to the ground?

Accepted Answer

Gravity

Answer

Magnetism

Answer

Friction

Answer

Inertia

Question 39

Which of these energy sources can be replaced naturally?

Accepted Answer

Wind

Answer

Coal

Answer

Oil

Answer

Natural gas

Question 40

What happens when water turns into a gas?

Accepted Answer

Evaporation

Answer

Condensation

Answer

Precipitation

Answer

Transpiration

Question 41

Where do plants get most of their energy from?

Accepted Answer

Sunlight

Answer

Water

Answer

Oxygen

Answer

Soil

Question 42

What is the name of the layer of gases that surrounds our planet?

Accepted Answer

Atmosphere

Answer

Troposphere

Answer

Stratosphere

Answer

Lithosphere

Question 43

Which time period in Earth's history was the oldest?

Accepted Answer

Precambrian Era

Answer

Mesozoic Era

Answer

Cenozoic Era

Answer

Paleozoic Era

Question 44

What was the name of the supercontinent that existed millions of years ago?

Accepted Answer

Pangaea

Answer

Gondwana

Answer

Laurasia

Answer

Atlantis

Question 45

During which period in Earth's history did the first animals appear?

Accepted Answer

Cambrian Period

Answer

Ordovician Period

Answer

Silurian Period

Answer

Devonian Period

Question 46

Which of these is NOT a fossil?

Accepted Answer

Rocks

Answer

Dinosaur bones

Answer

Leaf prints

Answer

Animal footprints

Question 47

What is the name of the star that our solar system moves around?

Accepted Answer

Sun

Answer

Moon

Answer

Mars

Answer

Jupiter

Question 48

Which layer of the Earth is the warmest?

Accepted Answer

Core

Answer

Crust

Answer

Mantle

Answer

Atmosphere

Question 49

What do we call the tool used to measure earthquakes?

Accepted Answer

Seismograph

Answer

Barometer

Answer

Thermometer

Answer

Anemometer

Question 50

Which of the following is a type of energy that can be renewed?

Accepted Answer

Wind

Answer

Coal

Answer

Natural gas

Answer

Oil