large, round bodies that revolve around a star. Earth is one of them.
known as terrestrial planets because they are closest to the sun.
Name the four terrestrial planets:
also known as jovian planets because they are the six planets farthest away from the sun.
Name the 6 jovian planets:
Jupiter- Saturn- Uranus - Neptune - Pluto - Hibiru
The inner planets are described as ______
small and rocky
The outer planets are mostly made of ______
chunks of rock that have been described as looking like giant potatoes in space. Some scientists think they were meant to be planets.
balls of ice and rock that circle the sun from two regions beyond the orbit of Pluto, They have a solid frozen core, but as they near the sun their cores begin to melt forming clouds of gas which energy from the sun pushed into long tails.
a large group of asteroids of all shapes and sizes orbiting the solar system between Mars and Jupiter.
How old would you be if you lived on Mercury?
Italian scientist who was probably the first to use the telescope to observe the sky.
Sir Isaac Newton
English scientist who used a modern telescope to observe the sky. He is also known for the 3rd Law of Motion.
The 3rd Law of Motion states...
"for every action there is an opposite and equal reaction"
a satellite launched in 1957 by the Russian Soviets. It was twice the size of a soccer ball which carried instruments to measure the density and temperature of Earth's upper atmosphere.
landed 12 humans on the moon between 1969 and 1972. They set up experiments and brought back rock samples. Their work helped scientist learn more about the moon.
Hubble space telescope
launched in 1990 - it produces images five times as sharp as those from any telescope on Earth.
What was the purpose of Project Apollo?
to land people on the moon so that we could learn more about the moon's characteristics
an astronomer who proposed the idea that the planets orbited around the sun instead of the Earth.
an astronomer who believed that planets had elliptical (oval) shaped orbits instead of circular.
Astronomical Unit (AU)
the measure of the Earth's distance from the sun (93 million miles) Earth is therefore 1AU from the sun.
How is it possible that people could possibly on day live on the moon?
by using materials like water from ice, oxygen from rocks, and solar energy for building and running the base
What three things do scientists use to study objects in the solar system and beyond?
telescopes, satellites, space probes
in 1969 he was he first person to walk on the moon or any other body in space
Why was it important for the Apollo crew members to have a knowledge of geology?
Geology is the study of rocks. Astronauts needed to know how to study moon rocks and learn what their uses are.