Erosion, Gravity, and Energy Sources

Front

What is erosion?

Back

Erosion is the process by which soil and rock are removed from the Earth's surface by natural processes such as wind or water flow.

Front

What is gravity?

Back

Gravity is a force that pulls objects toward each other, and on Earth, it pulls everything toward the center of the planet.

Front

Where is the most saltwater found?

Back

The most saltwater is found in seas.

Front

How does gravity affect a soccer ball on a roof?

Back

Gravity pulls the soccer ball down towards the ground.

Front

What provides nutrients to plants?

Back

Fungi and bacteria breaking down organic materials provide nutrients to plants.

Front

In which direction is gravitational force directed on Earth?

Back

Gravitational force is directed down towards the ground.

Front

What is the original source of energy in a food chain?

Back

The original source of energy in a food chain is the Sun.

Front

What role do plants play in the energy cycle?

Back

Plants absorb sunlight to make sugar, which is the energy source for other organisms.

Front

What is the relationship between gravity and falling objects?

Back

Gravity causes falling objects to accelerate towards the ground.

Front

How do animals obtain energy from plants?

Back

Animals obtain energy by eating plants, which contain stored energy from the Sun.