Earth Moon and Sun
What causes day and night on Earth?
Day and night happen because Earth rotates on its axis. When one side faces the Sun, it is daytime. When it turns away, it is nighttime.
What is a magnetic field?
A magnetic field is the invisible area around a magnet where magnetic force can be felt.
Where does light come from?
Light comes from sources like the Sun, light bulbs, fire, and stars.
What is a sound wave?
A sound wave is energy that moves through air, water, or solids when something vibrates.
What is the largest ocean on Earth?
Pacific
Why does the Moon look different throughout the month?
The Moon looks different because we see different parts of it lit by the Sun. These are called Moon phases.
What happens when two north poles are pushed together?
They repel, which means they push away from each other.
What happens when light hits an object?
Light can be reflected, absorbed, or pass through the object.
BONUS 2x points: What type of energy is a sound wave?
Mechanical
Which planet is called the "Red Planet"?
Mars
Bonus 2X points:What is the difference between Earth’s rotation and revolution?
Rotation is Earth spinning on its axis, which causes day and night. Revolution is Earth moving around the Sun, which causes a year.
Can plastic or wood be attracted to magnets?
No
Can light travel through space? Why?
Yes, light can travel through space because it does not need air or particles to move.
Why can’t sound travel in space?
Sound cannot travel in space because space has no air or particles for sound waves to move through.
What is the name of the supercontinent that existed on Earth millions of years ago?
Pangea
Why do we have different seasons during the year?
Seasons happen because Earth is tilted as it moves around the Sun. Different parts of Earth get more direct sunlight during different times of the year.
How does a compass use Earth’s magnetic field?
A compass needle is a small magnet that points toward Earth’s magnetic north pole.
BOUNS 2X Points: Why does a straw look bent in a glass of water?
The straw looks bent because light refracts, or bends, when it moves through water.
What happens when sound waves hit a wall?
They can bounce back, which creates an echo, or they can be absorbed.
Which metal is found the most at the center of the Earth?
Iron
What causes a lunar eclipse?
A lunar eclipse happens when Earth moves between the Sun and the Moon, causing Earth’s shadow to cover the Moon.
How do trains use magnetic fields?
Some trains use magnetic force to float above tracks and move faster with less friction.
What is refraction?
Refraction is when light bends as it moves from one material to another, like from air to water.
Why does sound travel faster in solids than in air?
Particles in solids are closer together, so sound can move through them faster.
What two elements is water made of?
Hydrogen and oxygen.