The word for something with many components arranged very specifically.
What is complex?
100
Matter in the universe is mostly these two things.
What are hydrogen and helium
100
Dust and gas clump together because of this.
What is gravity?
100
When the Earth first formed, you could say it was made out of this.
What is lava or magma?
100
We use this word to describe a particular type of environment.
What is a biome?
200
Astronomy, chemistry, and biology are examples of these.
What are scientific disciplines?
200
When matter gets very hot, it takes this form.
What is plasma?
200
The name for a place where stars are born.
What is a nebula?
200
Rocky planets are good places for life to form because they have these.
What are complex elements?
200
This is what DNA stands for.
What is deoxyribonucleic acid?
300
The "just right" conditions for something are named after this story.
What is Goldilocks?
300
These are the two major things scientists still don't understand about the Big Bang.
What there was before, and why it happened.
300
This is the process where most atoms heavier than hydrogen are created.
What is nuclear fusion?
300
These are the two general types of planets.
What are gas planets and rocky planets?
300
If the environment in a place changes, the animals and plants living there will do one of these two things.
What is adapt/evolve, or go extinct.
400
This is the Big History term for looking at things from close up or far away.
What is scale?
400
The time period when light could not travel through the universe is known as this.
What is the dark age, or plasma age?
400
When a star runs out of hydrogen, it becomes one of these.
What is a giant or supergiant?
400
When the atmosphere first formed, it was missing this important molecule.
What is oxygen?
400
The first forms of life probably began in these locations.
What are deep-sea vents?
500
The name for moments in the history of the universe when the right ingredients are put together in the right conditions, and the universe gains new properties.
What is a threshold of increasing complexity?
500
This evidence for the Big Bang was discovered accidentally.
What is the CBR?
500
When a star dies, it may leave behind one of these three things.
What are white dwarf, neutron star, or black hole?
500
When one continental plate is pushed underneath another, we say this is happening to it.
What is subduction?
500
This is the name for organisms that keep their DNA in a cell nucleus.