Atomic Structure
Ecosystems
Chemical Reactions
Cells
Astronomy
100

This negativly charged particle is found orbiting the atom nucleus. 

What is an electron?

100

This term describes organisms that can make their own food and make the base of the food chain.

What is a producer?

100

This type of change often results in different substances being produced, and cannot be undone. 

What is a chemical change?

100

This proccess breaks down sugar to produce CO2, H2O, and ATP.

What is cellular respiration?

100

The solar eclipse occurs only when the moon is in this phase of it's cycle 

What is a new moon?

200

This element, which is the smallest in the universe, is also the most abundant.

What is hydrogen?

200

This type of consumer has no predators, meaning the sit on top of the food chain.

What is an apex predator?

200
Many chemical reactions start with two liquids and produce a solid when mixed. The solid is called this.

What is a precipitate?

200

Plants produce this during photosynthesis, its chemical formula being C6H12O6.

What is glucose?

200

A lunar eclipse only occurs during this moon phase.

What is a full moon?

300

When you add the protons and neutrons of an element together, you get this measurement

What is the atomic weight?

300

This biome is defined by being in latitudes about halfway between the equator and the poles, having a fair amount of rainfall, and features predominantly deciduous trees.  

What is a temperate forest?

300

This corrosive substance loses a hydrogen ion in water and at high concentrations can eat through organic matter or even metal. 

What is an acid?

300

DNA, the code to life, is contained in this organelle.

What is the nucleus?

300

When the northern hemisphere is tilted away from the sun, we are in this season.

What is winter?

400

When an atom has a number of electrons that are more or less than it's standard number, it is called this

What is an ion?

400

This term describes where and how an organism makes it's living

What is a niche?

400

A reaction that releases energy, such as heat, is called this.

What is exothermic?

400

Four of the five kingdoms of life are described as eukaryotic cells. Only one kingdom is described as this kingdom.

What are prokaryotes?

400

Around September 22nd every year, there are equal amounts of daylight and nighttime. This day is know as this.

What is the autumnal equinox?

500

This is the name for different atoms of the same element having varying numbers of neutrons. 

What are isotopes?

500

There are 5 kingdoms of life, including bacteria, animals, plants, fungi, and this group. 

What are protozoa?

500

The number of atoms at the beginning of a reaction are the same as the number of atoms at the end of a reaction.  This law is known as what

The law of Conservation of Matter

500

This process, also called cell division, occurs to split one cell into two daughter cells.

What is mitosis?

500

The first law of planetary motion describes this shape of the orbit  of the earth and other planets around the sun.

What is an ellipse?