This inner planet is 0.7 AU from the sun. It is closest in size to our own planet.
What is Venus?
100
This outer planet is the largest planet in our solar system and can be found 5.2 AU from the sun, just beyond the Asteroid Belt.
What is Jupiter?
100
This cycle is caused by Earth's rotation.
What is the Day & Night Cycle?
100
Once a meteoroid has entered Earth's atmosphere, it is called this.
What is a meteor?
100
This scientific instrument is used to view objects in space.
What is a telescope?
200
This is the order of the inner planets from the sun.
What is Mercury, Venus, Earth, Mars?
200
This outer planet has 62 moons (9 of which are unconfirmed) and is 9.5 AU from the sun.
What is Saturn?
200
The tilt of Earth's axis as it revolves around the sun causes this cycle.
What are seasons?
200
When a meteor hits the ground, it is called this.
What is a meteorite?
200
This is demonstrated when scientists build upon the knowledge or ideas of scientists before them.
What is the Nature of Science?
300
This is the smallest of the inner planets.
What is Mercury?
300
This is the smallest of the outer planets with a diameter of 49,244 km.
What is Neptune?
300
When we have these moon phases, the sun's gravity works with the moon's gravity to pull surface waters on Earth, creating a higher high tide and a lower low tide.
What is Full Moon and New Moon?
300
These are like dirty snowballs because they are made up of dust, ice, and frozen gases. Their orbits are long, narrow ellipses.
What is a comet?
300
These two Great Thinkers believed that the Earth was the center of our solar system.
Who are Aristotle and Ptolemy?
400
This is the largest of the inner planets.
What is Earth?
400
These are two things that the outer planets have in common.
What is gaseous and relatively large in size?
400
This moon phase comes right after a full moon.
What is a waning gibbous?
400
This may have caused the the extinction of the dinosaurs.
What is an asteroid?
400
An object in motion stays in motion because of this.
What is inertia?
500
These are two things all of the inner planets have in common.
What is relatively small size and rocky surfaces?
500
This is the order of the outer planets from the sun, including the astronomical units for each planet.
What is Jupiter (5.2 AU), Saturn (9.5 AU), Uranus (19.2 AU), and Neptune (30 AU)?
500
This is the name of the tide characterized by a lower high tide and a higher low tide due to the sun's gravitational pull working against the moon's gravitational pull.
What is a Neap tide?
500
This is how energy is produced in the sun's core.
What is the nuclear fusion of hydrogen atoms into helium atoms?
500
This man discovered that burning liquid fuels would provide continuous power, thus significantly increasing our ability to explore space.