The Sun and 8 planets
Planets orbiting around the Sun.
What is heliocentric model?
The Universe is always expanding.
What is Hubble's Law?
Planets move around the Sun in an elliptical orbit.
What is Kepler's 1st law?
Rotation
Which of Earth's motions causes day and night?
High tide washes it away.
What could happen if you built a sandcastle too close to the shoreline?
When two Hydrogen atoms "fuse" together to form one Helium atom, releasing energy.
What is nuclear fusion?
The red tinge behind the star as it travels away from you.
What is Doppler red shift?
the further a planet is from the Sun, the longer it's orbit AND the longer its orbital period
What is Kepler's 3rd law?
Earth's tilt at 23.5*
What is the reason for the seasons?
Sun, 1/4 moon, and Earth align at 90*
What is a neap tide?
Mercury, Venus, Earth, Mars
What are the four terrestrial planets?
Our Galaxy is spiral shaped.
What shape is the Milky Way?
Planets travel around the Sun in "Equal areas of space in equal areas in time"
What is Kepler's 2nd law?
Winter Season
What season is it when Earth tilts away from Sun in the Southern Hemisphere?
New moon phase.
What moon phase is it when we can't see the moon?
Gamma Rays
Which has the highest wave on the electromagnetic spectrum?
It began with a singularity.
When Earth is closest to the Sun, in January, it is moving faster.
What is perihelion?
Equinoxes
What do we call the days when we have equal hours of day and night?
Tidal bulge
What does Earth rotate into and out of when we think of tides?
Nuclear Fusion takes place in the Sun's core.
Where does nuclear fusion take place within the Sun?
A nebula collapsing onto itself due to gravity.
What is the first step of the formation of a Solar System?
The reason Earth speeds up or slows down as it orbits the Sun.
What is gravity?
Area around the Equator
What latitude of Earth receives most sunlight?
Spring tides
What tides occur when Earth, Sun and new moon are in alignment?