Weather Wonders
Ocean Explorers
Earth’s Layers
Cosmic Neighbors
Science in Action
100

This instrument measures air pressure.

What is a barometer?

100

The largest and deepest ocean on Earth.

What is the Pacific Ocean?

100

The outermost solid shell of the Earth.

What is the crust?

100

The planet known as the Red Planet.

What is Mars?

100

The process of asking questions and testing hypotheses about the natural world.


What is the scientific method?

200

A rotating column of air that extends from a thunderstorm to the ground.

What is a tornado?

200

These underwater mountains are formed by volcanic activity.

What are mid-ocean ridges?

200

The semi-liquid layer beneath the crust that tectonic plates float on.

What is the mantle?

200

Earth’s natural satellite.

What is the Moon?

200

A scientist who studies the atmosphere and weather patterns.

What is a meteorologist?

300

The type of cloud that often signals fair weather.

What is a cumulus cloud?

300

These streams of water move through the oceans and are caused by wind, Earth's rotation, and differences in water temperature.
 

What are ocean currents?

300

The layer made primarily of iron and nickel, found at Earth’s center.

What is the core?

300

The second planet from the Sun, often called Earth's "sister planet" because of its similar size and composition.
 

What is Venus?

300

The term for breaking down rocks into smaller pieces through natural processes.

What is weathering?

400

The scale used to measure the strength of hurricanes.

What is the Saffir-Simpson scale?

400

The process by which sunlight supports life in ocean ecosystems.

What is photosynthesis?

400

The type of rock that forms when magma or lava cools and solidifies.

What is igneous rock?

400

The name of our galaxy.

What is the Milky Way?

400

The type of plate boundary where two plates move away from each other.

What is a divergent boundary?

500

This weather phenomenon occurs when cool ocean water interacts with the atmosphere, often causing drought in the Americas.

What is La Niña?

500

This famous deep-sea trench is the deepest point in the world’s oceans.

What is the Mariana Trench?

500

This boundary marks the transition between the crust and the mantle.

What is the Mohorovičić discontinuity, or Moho?

500

The term for planets outside our solar system.

What are exoplanets?

500

The theory that explains the movement of continents over geological time.

What is plate tectonics?