Stars/ Sun
What cause the apparent brightness of a star? What causes the actual brightness of a star?
The apparent brightness of a star is caused by its distance from Earth, but the actual brightness is caused by its temperature.
What planet has a rusty surface?
Mars has a rusty surface.
What would you find beyond Neptune?
Beyond Neptune you would find Outer Space.
How are asteroids and comets alike?
Asteroids and comets both orbit the Sun.
What is the difference between the sun and the planets?
The Sun is the center of the solar system and the planets orbit the Sun.
Which planets do not have any moons?
Mercury and Venus are the only planets that do not have moons.
What part of Saturn is made of ice, dust, and rock?
The rings of Saturn are made of ice, dust, and rock.
What helps keep the planets, moons, and other space objects moving around the Sun in a fixed orbit?
The Sun’s gravitational pull keeps the planets, moons, and other space objects moving around the Sun in a fixed orbit.
The table shows data about five stars.
Canopus 309
Rigel 860
Sirus 8.6
Arcturus 37
Vega 25
Which star is closest to the sun?
Sirus
Name three characteristics of all inner planets?
The inner planets have solid rocky surfaces, they orbit the Sun, and they all have atmospheres.
What is the atmosphere around Jupiter and Saturn made of?
The atmosphere around Jupiter and Saturn is made of hydrogen and helium gases.
What determines the length of a year?
A year is how long it takes a planet to orbit the Sun.
Looking at the table above, which star would appear to be largest when viewed from Earth?
Canopus 309
Rigel 860
Sirus 8.6
Arcturus 37
Vega 25
Sirius would appear to be the largest because it is closest to the Earth.
What separates the inner planets from the outer planets?
The asteroid belt separates the inner and outer planets.
Why do Uranus and Neptune appear to be blue in color?
The methane gas surrounding Uranus and Neptune absorbs red light and reflects
blue light.
Name the planets in order including the sun?
Sun. Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune.