Solar System
What is the star at the center of the Solar System?
The Sun is the star at the center of the Solar System.
How many hours does it take for Earth to spin once on its axis? What is this called?
It takes 24 hours for Earth to spin once on its axis. This is a rotation.
The Sun always emits ______ and ______.
The Sun always emits heat and light.
True or false?
Planets produce their own light.
How long does it take for Earth to travel around the Sun? What is this called?
It takes 365 days for Earth to travel around the Sun. This is called a revolution.
True or false? If false, correct the sentence.
Earth is a smooth planet in the form of a square.
Earth is a rocky planet in the form of a sphere.
What are the eight planets in the Solar System, in order from closest to farthest from the Sun?
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune
Describe the direction of the Sun's rays during winter.
In the winter, the Sun's rays reach the top half of the Earth at an angle.
List four types of natural hazards.
Hurricanes, floods, droughts, and wildfires.
Why do we have day and night?
Day and night exist because the Earth is always spinning on its axis.
Hydrosphere: all of the Earth's water
Geosphere: the interior of the Earth made up of rocks and minerals
True or false? If false, correct the sentence.
The Earth spins on a straight line. This line is real and called the axis.
The Earth spins on a tilted line. This line is imaginary and called the axis.
What is the difference between satellites and comets? What is the name of Earth's satellite?
Satellites travel around a planet, and comets travel around the Sun. The Moon is the satellite that travels around the Earth.
Crust: thinner, outer layer of solid rock, under the continents and oceans
Mantle: hot middle layers with magma
Core: outer core is liquid and hot, inner core is solid
The _______ is an imaginary line that divides Earth into two halves: the _______ ________ and the _______ _______.
The Equator is an imaginary line that divides Earth into two halves: the Northern Hemisphere and the Southern Hemisphere.