Quiz about Exploring Earth and Its Systems

Question 1

What is the main reason Earth experiences different seasons?

Accepted Answer

The tilt of Earth's axis

Answer

The distance from the Sun changes

Answer

The shape of Earth's orbit

Answer

The speed of Earth's rotation

Question 2

Which layer of the Earth is made mostly of solid iron and nickel?

Accepted Answer

Inner core

Answer

Crust

Answer

Mantle

Answer

Outer core

Question 3

What is a biotic factor in an ecosystem?

Accepted Answer

Plant

Answer

Sunlight

Answer

Water

Answer

Temperature

Question 4

Which statement is part of the cell theory?

Accepted Answer

All living things are made of cells

Answer

All cells have a nucleus

Answer

Only animals are made of cells

Answer

Cells can live forever

Question 5

What causes spring tides?

Accepted Answer

The Sun, Moon, and Earth are in a straight line

Answer

The Sun and Moon are at right angles

Answer

Only the Sun pulls on the ocean

Answer

Only the Moon pulls on the ocean

Question 6

Which of the following is an abiotic factor?

Accepted Answer

Soil

Answer

Grass

Answer

Rabbit

Answer

Tree

Question 7

What is the outermost layer of the Earth called?

Accepted Answer

Crust

Answer

Mantle

Answer

Core

Answer

Lithosphere

Question 8

Which of the following best describes competition between organisms?

Accepted Answer

Fighting for resources

Answer

Sharing food

Answer

Living in harmony

Answer

Helping each other

Question 9

During a neap tide, what is the position of the Sun, Moon, and Earth?

Accepted Answer

At right angles

Answer

In a straight line

Answer

All on the same side

Answer

The Moon is behind the Sun

Question 10

Which of the following is NOT a function of the Earth's mantle?

Accepted Answer

Protecting Earth from space debris

Answer

Convection currents

Answer

Producing magma

Answer

Moving tectonic plates

Question 11

Which of these is an example of a biotic and an abiotic factor interacting?

Accepted Answer

A plant absorbing sunlight

Answer

A rock eroding in the rain

Answer

Two animals fighting

Answer

Water freezing into ice

Question 12

If the tilt of Earth's axis increased, what would most likely happen to the seasons?

Accepted Answer

Seasons would become more extreme

Answer

They would become less noticeable

Answer

There would be no change

Answer

The length of a year would change

Question 13

Which scenario best shows competition between organisms?

Accepted Answer

Two birds building nests in the same tree

Answer

A bee pollinating a flower

Answer

A fish swimming in a pond

Answer

A tree growing in the forest

Question 14

How does the composition of the Earth's core differ from the mantle?

Accepted Answer

The core is mostly iron and nickel, the mantle is silicate rock

Answer

The core is made of rock, the mantle is metal

Answer

The core is liquid, the mantle is solid

Answer

The core is made of water, the mantle is made of air

Question 15

Which of the following best explains why neap tides are weaker than spring tides?

Accepted Answer

The Sun and Moon pull at right angles, reducing their combined effect

Answer

The Sun and Moon pull together

Answer

The Earth blocks the Moon's gravity

Answer

The Moon is farther from Earth

Question 16

Which statement best describes the function of the Earth's crust?

Accepted Answer

It provides a solid surface for life

Answer

It generates Earth's magnetic field

Answer

It is the source of Earth's gravity

Answer

It is the hottest layer

Question 17

Why is the cell theory important to biology?

Accepted Answer

It describes the basic unit of life

Answer

It explains how animals move

Answer

It shows how plants make food

Answer

It tells us why the sky is blue

Question 18

If two species compete for the same food source, what is a possible outcome?

Accepted Answer

One species may outcompete the other

Answer

Both species will increase in number

Answer

Both species will become extinct immediately

Answer

The food source will increase

Question 19

Which of the following best describes how abiotic factors can affect biotic factors?

Accepted Answer

Temperature can limit where plants grow

Answer

Animals can change the weather

Answer

Plants can make rocks

Answer

Rocks can eat plants

Question 20

What does the outer core of the Earth create that helps protect the Earth from the most harmful rays of the sun?

Accepted Answer

A magnetic field

Answer

Gravity

Answer

The atmosphere

Answer

Rain clouds

Question 21

A scientist observes that when the Moon is full or new, the difference between high and low tides is greatest. Using evidence, explain why this happens.

Accepted Answer

The Sun and Moon's gravity combine, increasing tidal range

Answer

The Sun and Moon's gravity cancel each other out

Answer

The Earth's gravity is stronger at these times

Answer

The Moon is closer to Earth

Question 22

A forest is experiencing a drought. Predict how this abiotic factor might affect the biotic factors in the ecosystem.

Accepted Answer

Plants may die, leading to less food for animals

Answer

Animals will have more water

Answer

The soil will become richer

Answer

Trees will grow faster

Question 23

Given the cell theory, what can you infer about the origin of new cells in your body?

Accepted Answer

They are created by existing cells dividing

Answer

They come from non-living material

Answer

They appear randomly

Answer

They are made by the Sun

Question 24

If Earth's axis were not tilted, what would be the most likely effect on Earth's seasons?

Accepted Answer

There would be no seasons

Answer

Seasons would be more extreme

Answer

The year would be shorter

Answer

The Moon would not orbit Earth

Question 25

A new species of plant is introduced into an ecosystem and quickly spreads. How might this affect competition among existing plant species?

Accepted Answer

Competition for resources will increase

Answer

All plants will grow better

Answer

There will be less competition

Answer

The new plant will not affect anything

Question 26

Explain how the movement of tectonic plates in the mantle can lead to earthquakes.

Accepted Answer

Plates move and sometimes get stuck, then release energy suddenly

Answer

The core heats up and melts the crust

Answer

The crust floats on water

Answer

The Sun pulls on the plates

Question 27

A pond receives extra nutrients from nearby farms, causing algae to grow rapidly. How does this change affect the pond's ecosystem?

Accepted Answer

Algae use up oxygen, harming fish and other organisms

Answer

Fish will have more food

Answer

The water will become clearer

Answer

The temperature will decrease

Question 28

If the Earth's outer core stopped moving, what would be the most likely consequence for life on Earth?

Accepted Answer

The magnetic field would disappear, exposing Earth to harmful solar radiation

Answer

The crust would become thicker

Answer

The seasons would change

Answer

The Moon would move away

Question 29

A population of rabbits and a population of deer both eat grass in a meadow. If the grass supply decreases, what is a likely outcome?

Accepted Answer

Both populations may decrease due to less food

Answer

The rabbit population will increase

Answer

The deer will stop eating grass

Answer

The grass will grow faster

Question 30

A student claims that all living things are made of cells, but viruses are not made of cells. Using cell theory, evaluate this claim.

Accepted Answer

The claim is correct; viruses are not considered living because they are not made of cells

Answer

The claim is incorrect; viruses are living things

Answer

The claim is correct; viruses are made of cells

Answer

The claim is incorrect; all things are made of cells

Question 31

The model shows Earth in several positions relative to the sun. Which of the following statements accurately describe the seasons Earth is experiencing at certain positions? Select TWO correct answers.

Accepted Answer

It is summer in the souther hemisphere at position 4.

Accepted Answer

It is fall in the northern hemisphere at position 3

Answer

It is winter in the northern hemisphere at position 2.

Answer

It is summer in the northern hemisphere at position 3

Exploring Earth and Its Systems

31 questions