Earth
When the moon moves in front of the sun.
What is a solar eclipse?
The hardened remain of a living thing. Examples include petrified wood and dinosaur bones.
What is a fossil?
An object in motion has what kind of energy?
What is kinetic energy?
The largest asteroid in the asteroid belt.
What is Ceres?
What type of volcanoes created the hawaiian islands?
What are shield volcanoes?
What pigment is used in photosynthesis?
What is cholorphyl?
What type of rock is shale?
What is sedimentary rock?
The transformation of an object from solid to gas.
What is sublimation?
The change in wavelength when an object is moving away from you
What is red-shift?
The movement of water from the Earth's surface, caused by extra-planetary gravitational forces.
What are tides?
What do you call bacteria that live in extreme conditions?
What are extremophiles?
Which is the weakest force, out of gravity, magnetism, and the weak nuclear force?
What is gravity?
What are the building blocks of protons, neutrons, and electrons called.
What are quarks?
A rapidly spinning, highly dense star, known for its pulsating electromagnetic emissions.
What is a pulsar?
What are puffy white clouds with flat bottoms called.
What is cumulus clouds?
A community of plants, animals, and the environment in which they live.
What is an ecosystem?
An atom's loss or gain of elections.
What is ionization?
A star whose outer envelope has been blown away by its own powerful radiation.
What is a Wolf-Rayet Star?
What causes coral bleaching?
What are rising sea temperatures? (Global warming is also an acceptable answer)
Which type of single celled organism has organelles?
What are protists?
What geologic phenomena create oceanic crust.
What is a mid ocean ridge?
What is hydrolysis?
How massive would a star have to be (in solar masses) to become a black hole at the end of its life?
What is ten times the mass of the sun?