Solar System
This planet is known as the “Red Planet.”
What is Mars
This force pulls objects toward one another.
What is gravity?
Matter is anything that has this and takes up space.
What is matter?
These tiny building blocks make up all matter in the universe.
What is a atom?
Earth spins on its axis in a movement called this.
What is rotation?
These four planets are closest to the Sun and are called the inner planets.
What are Mercury, Venus, Earth, and Mars?
The amount of gravitational pull depends on distance and this.
What is mass?
In this state of matter, particles are tightly packed and vibrate in place.
What is a solid?
When two or more atoms bond together, they form one of these
What are molecules
Earth revolves around the Sun. One full revolution takes this long.
what is 365 days (one year)
This planet rotates on its side at a 98° tilt.
What is Uranus?
You would weigh less on this planet because it has less gravitational pull than Earth.
What is the Moon?
This change of state happens when a liquid becomes a gas.
what is evaporation?
This part of an atom has a positive charge.
what is a proton?
Earth’s tilt, not its distance from the Sun, is responsible for this yearly cycle.
What are the seasons?
This dwarf planet is located in the Kuiper Belt and was reclassified in 2006.
What is pluto?
An orbit forms because gravity pulls an object inward while this motion keeps it moving forward.
What is inertia?
This state of matter has particles that move freely and spread apart.
What is a gas?
This part of an atom stays out of everyone's business.
what is a neutron
When the Northern Hemisphere is tilted toward the Sun, it experiences this season.
what is summer?
This planet has the largest storm in the solar system, known as the Great Red Spot.
What is Jupiter
This scientist discovered the law of universal gravitation after observing a falling apple.
Who is Isaac Newton?
When a solid turns directly into a gas without becoming a liquid, it is called this.
what is sublimation?
This part of the atom moves quickly around the nucleus and has a negative charge.
what is a electron?
Day and night occur because Earth rotates at this approximate speed.
what is 24 hours? (rotation)