The Solar System
The Beginning
Kepler's Laws
Seasons/Tides
The Sun
The Electromagnetic Spectrum
100

Mercury, Venus, Earth, and Mars are all examples of this kind of planet.

Terrestrial

100

This theory describes the origin of the universe, suggesting it began with a massive explosion.

The Big Bang Theory

100

Kepler's First Law states that the orbit of a planet around the sun is this shape.

Ellipse

100

The Earth is closest to the Sun during this season in the Northern Hemisphere.

Winter

100

The Sun generates energy through this process, where hydrogen nuclei combine to form helium.

Nuclear Fusion

100

This part of the electromagnetic spectrum is able to be seen by the human eye and consists of the colors of the rainbow.

Visible Light

200

This type of planet is primarily composed of hydrogen and helium gases and lacks a solid surface.

Jovian (Gas Giant)

200

This hypothesis explains the formation of the solar system from a cloud of gas and dust.

The Nebular Hypothesis

200

According to Kepler's Second Law, a planet moves faster in its orbit when it is closer to this.

The Sun

200

The gravitational pull of this celestial body is the primary cause of tides on Earth.

The Moon
200

This process, essential for plant life on Earth, is powered by sunlight.

Photosynthesis

200

These waves have the longest wavelengths in the electromagnetic spectrum and are used for communication.

Radio Waves

300

This dwarf planet, once considered the ninth planet of our solar system, is found in the Kuiper Belt.

Pluto

300

According to the Nebular Hypothesis, this force caused the gas and dust to collapse into a spinning disk.

Gravity

300

This term refers to the point in a planet's orbit where it is farthest from the Sun.

Aphelion

300

This season occurs when the Northern Hemisphere is tilted toward the Sun.

Summer

300

This layer of the Sun is where nuclear fusion occurs, producing the Sun’s energy.

The Core

300

These highly energetic waves have the shortest wavelengths and are used in medical imaging.

Gamma Rays

400

This region of our solar system lies between the orbits of Mars and Jupiter and is home to millions of rocky bodies.

Asteroid Belt

400

In the Nebular Hypothesis, the center of the collapsing nebula forms this body, which will eventually ignite to become a star.

Protostar

400

If a planets orbit is 10 million kilometers (c) and the semi-major axis is 25 million kilometers (a) what is the planets eccentricity?

O.4 

400

When it’s winter in the Northern Hemisphere, this season is occurring in the Southern Hemisphere.

Summer

400

The Sun is the primary source of this for Earth's atmosphere, driving weather, climate, and the water cycle.

Energy

400

In the electromagnetic spectrum, as the wavelength decreases, this property of the wave increases.

Frequency

500

This spherical shell is believed to surround our solar system and is where the Sun's gravity ends.

The Oort Cloud

500

This is responsible for clearing the remaining gas and dust after the planets and other celestial bodies form.

Solar Wind

500

According the Kepler's Third Law, this planet has the slowest revolution of all the planets in our solar system.

Neptune

500

During neap tides, the gravitational pull of the Sun and Moon partially cancels out, as they are at right angles with the Earth, resulting in this kind of tidal range.

Neap Tide
500

Energy from the Sun's core passes through this zone where it can take thousands of years to reach the next layer.

Radiative Zone

500

Prolonged exposure to this type of electromagnetic radiation can increase the risk of skin cancer.

Ultraviolet (UV) Light