SCIENCEFourth Grade

Week Three

•Elija is doing a power point presentation on the planet that is 4th from the Sun. Which planet is he studying?

 

•Mars

•What is the name of the central star in our solar system?

•Sun

•What are the natural satellites called that orbit the sun?

•planets

•Which object in our Solar System has an atmosphere of gasses, a rocky surface, and has extensive liquid water on it?

•Earth

•What is the natural satellite that orbits the planet Earth called?

•moon

•What kind of energy does the Sun produce?

 

•The sun produces heat and light energy.

•What two properties of Earth cause it to have distinct seasons?

•the tilt of its axis and the revolution around the sun

•How long does it take for Earth to revolve around the sun?

•Earth revolves around the Sun one time each year or 365 days

• Fossil fuels such as coal, oil, and gas are essential energy sources for people on Earth. Where did these fuels originally get their stored energy?

•the sun

•When does summer occur?

•When the Earth is tilted most towards the Sun.

•How long does one rotation of the Earth on its axis take?

•24 hours

•Where does the Sun appear to rise and set?

•The sun appears to rise in the east and set in the west.

•Why does the Moon appear so bright in the sky?

•The Moon reflects light from the sun back to the Earth.

•What phase of the moon occurs when the entire side of the moon facing Earth is darkened?

•a new moon

•What are the changing shapes of the moon called and what causes them to appear to change shapes?

•phases

• The amount of reflected light from the Moon that is seen on Earth determines the phases.

•What force causes tides?

•The moon’s gravitational pull on Earth makes the surface level of the ocean rise and fall.

•What are shadows?

•Shadows are cast on Earth by objects that block sunlight.

•What kinds of shadows are cast early in the morning when the Sun appears low in the sky?

•Objects cast long shadows.

•What kinds of shadows are cast at noon when the sun is overhead?

•Objects cast short shadows or no shadows.

• Is this runner jogging on the beach in the morning or at noon?

•He is jogging in the morning when objects cast long shadows.

•What happens to shadows on Earth as the sun rises in the sky?

•The shadows got shorter.

•Why do people use telescopes?

•People use telescopes to view things in outer space.