Blue
This bright yellow star in the center of our solar system gives us heat and light.
The Sun
The force that pulls everything down toward the center of the Earth so we don't float away.
Gravity
The green substance in plant leaves that helps them trap sunlight to make food.
Chlorophyll
The process plants use to convert sunlight, carbon dioxide, and water into oxygen and glucose.
Known as the "powerhouse of the cell," this organelle generates most of the cell's chemical energy.
Mitochondira
Animals like cows and pigs eat plants, but this type of animal (like a tiger) eats mostly meat.
Carnivore
The three main states of matter are solid, liquid, and this one.
Gas
Rocks formed from cooled, hardened lava or magma are called this type of rock.
Igneous Rock
The outer layer of the Earth that we walk on, located above the mantle.
Crust
This boundary between two tectonic plates occurs where they slide horizontally past each other, like the San Andreas Fault.
Transform Boundary
Water turns into this solid state when it gets down to 32 degrees Fahrenheit (0 degrees Celsius).
Ice
The process by which water turns from a vapor into a liquid.
Condensation
The flow of electric charge through a wire or conductor is known as an electric ____.
Current
Organisms like mushrooms and bacteria that break down dead plants and animals into nutrients.
Decomposers
On the pH scale, a solution with a pH below 7 is considered this.
Acidic
Caterpillars go into a chrysalis and transform into a beautiful flying insect.
Butterfly
This instrument uses magnets to help navigators find North, South, East, and West.
Compass
The movement of broken-down rock and soil from one place to another by wind or water.
The tiny, fundamental building blocks that make up all matter.
Atoms
According to Newton's Second Law of Motion, Force equals mass multiplied by this.
Acceleration; F=ma
Plants use these underground parts to soak up water and nutrients from the soil.
Roots
What is the name of a large solid object that orbits around planets? (not a satalite)
Moon
Energy in motion (like a rolling ball) is called kinetic energy, while stored energy is called this.
Potential Energy
The organ system responsible for breathing, driven by the lungs.
Respiratory System
The physical or functional expression of a genetic trait (like eye color) as opposed to the underlying genetic code.
Phenotype