Water Cycle
Gravity
Sun and Stars
Human Impact
Models
100

What is evaporation?

The process of water changing from liquid to gas.

100

What is one everyday observation that supports the idea of gravity pulling objects toward Earth?

An apple falling from a tree.

100

What type of celestial body is the Sun?

 A star.

100

What is one way industries can reduce waste?

 By recycling materials.

100

What causes shadows to form?

An object blocking light.

200

What are the main processes involved in the water cycle?

Evaporation, condensation, precipitation, absorption, and runoff. **collection is also acceptable

200

What effect does gravity have on water in a glass?

It keeps the water at the bottom of the glass.

200

 What do we call a group of stars that form a recognizable pattern?

A constellation.

200

How do community gardens help the environment?

They promote local food production and reduce transportation emissions.

200

In a model showing Earth’s rotation, what direction does Earth spin?

Counterclockwise when viewed from above the North Pole.

300

 Why is runoff important for rivers and lakes?

It replenishes these water sources.

300

What happens to your weight on another planet?

It changes based on that planet's gravitational force, but your mass remains the same.

300

 How far is the Sun from Earth?

About 93 million miles (150 km)

300

 How can crop rotation benefit the environment?

It helps maintain soil health and reduces pest populations.

300

How does the Sun’s position in the sky affect the length of shadows?

Shadows are longer when the Sun is low and shorter when the Sun is high.

400

Why is the water cycle important for ecosystems?

It helps distribute water and nutrients, supporting life.

400

What happens to an object in space without gravity?

It would float freely without being pulled toward any center

400

What is one way students can make observations about the Sun in their daily lives?

By tracking its position in the sky throughout the day.

400

What is the impact of air quality regulations on public health?

They help reduce harmful pollutants, leading to better health outcomes.

400

How can you demonstrate Earth’s rotation in a classroom model?

By using a globe and a light source to represent the Sun.

500

 How does soil type affect absorption rates?

Sandy soils absorb water faster than clay soils.

500

 How does gravity influence the tides on Earth?

The gravitational pull of the Moon and Sun causes tides in oceans and lakes.

500

 Why can we only see a limited number of stars at night?

Because of light pollution and the Earth's rotation.

500

What is a green building?

A building designed to be environmentally friendly and resource-efficient.

500

 How does the position of the Earth affect our view of other stars?

As Earth orbits the Sun, our view of stars changes, showing different constellations at different times of the year.