What keeps the planets in orbit revolving around the sun?
Gravity
Why is Pluto classified as a dwarf planet?
Pluto has not "cleared its neighborhood" around its orbit.
Name the four planets that fit the following clues:
-closest to the sun
-their surfaces are solid (terrestrial planets)
-made up mostly of heavy metals such as iron and nickel
-have either no moons or few moons
Mercury
Venus
Earth
Mars
What causes the amount of direct sunlight received and seasonal temperature changes?
The tilt of Earth’s axis
What is the difference between a rotation and revolution? How long does it take Earth to rotate & revolve?
Rotation is spinning once on its axis. Revolution is orbiting around the sun. Rotate=24 hours . Revolution = 365.24 days
How many stars are there in our Solar System?
1 (Our Sun)
Why does the Sun appear to be brighter and larger than other stars?
The Sun is closer to us.
What are metallic, rocky bodies that orbit the sun but are too small to be classified as a planet?
Asteroids
The Sun’s position in the sky changes in a single day and from day to day.
During which season does the Sun appear to rise and set in the lowest path?
Winter
Plants make food through a process called what?
Photosynthesis
What are organisms that make their own food?
Producers (Plants)
What are organisms that have to eat to get energy?
Consumers
What organisms breaks down dead plants and animals?
decomposers
What represents an intertwining of food chains within the same ecosystem?
Food Web
What are the three types of symbiotic relationships?
Mutualism
Commensalism
Parasitism
How can the motion of an object change?
By speeding up, slowing down, or changing direction.
