Sun–Earth–Moon System
Solar System Objects & Gravity
Seasons, Tides & Earth–Sun Patterns
Stars, Galaxies & the Universe
Earth’s Surface & Deep Time
Plate Tectonics, Weather & Climate Systems
100

Earth completes one orbit around the Sun in this amount of time.

What is one year?

100

The first planet from the Sun.

What is Mercury?

100

Seasons are mainly caused by Earth’s _______.

What is tilt?

100

Our home galaxy.

What is the Milky Way?

100

Rock formed from cooled magma or lava

What is igneous rock?

100

Short-term atmospheric conditions.

What is weather?

200

The Moon shines because it does this.

What is reflect sunlight?

200

A rocky object that mostly orbits between Mars and Jupiter.

What is an asteroid?

200

The largest tidal range occurs during this type of tide.

What is a spring tide?

200

The stable stage where stars spend most of their lives.

What is the main sequence?

200

The process that breaks rock into smaller pieces.

What is weathering?

200

The main energy source that drives Earth’s weather.

What is the Sun?

300

Moon phases happen because we see different amounts of the Moon’s _______.

What is sunlit side?

300

This icy region beyond Neptune contains many dwarf planets and comets.

What is the Kuiper Belt?

300

Why seasons are not caused mainly by distance from the Sun.

What is Earth’s tilt changes sunlight angle and daylight length?

300

The two properties used to classify stars on the H-R diagram.

What are brightness (luminosity) and temperature?

300

This rock type often contains fossils.

What is sedimentary rock?

300

Warm ocean water and rising humid air are needed to form this.

What is a tropical cyclone (hurricane)?

400

Earth’s rotation explains why this appears to happen daily.

What is the Sun moving across the sky? (Day and Night)

400

A meteoroid becomes this when it hits Earth’s surface.

What is a meteorite?

400

The smallest tidal range happens during this tide type.

What is a neap tide?

400

High-mass stars can end their life cycle in this explosive event.

What is a supernova?

400

The law stating lower rock layers are older than layers above them.

What is the law of superposition?

400

This plate boundary forms earthquakes without creating or destroying crust.

What is a transform boundary?

500

Name two factors that cause ocean tides.

What are the Moon’s gravity and the Sun’s gravity?

500

Gravity in the solar system causes planets to do this instead of moving in straight lines.

What is stay in orbit?

500

What yearly data patterns help scientists predict seasons?

What are temperature, sunrise/sunset times, and daylight length?

500

Give one piece of evidence that supports the Big Bang theory.

What is galaxy redshift, cosmic microwave background radiation, or element composition?

500

Relative dating differs from absolute dating because it does this.

What is compares ages instead of giving a numerical age?

500

Name one human activity that increases greenhouse gases.

What is burning fossil fuels or deforestation?

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