Ecology
This term describes the community of living organisms interacting with their environment
ecosystem
This is the lightest element on the periodic table
hydrogen
This is the term for how high or low a sound is.
pitch
This is the longest bone in the human body
femur
This nutrient provides the body with quick energy
carbohydrates
This process describes the movement of water between the atmosphere, land, and oceans
water cycle
This is the term for a substance made of only one type of atom
element
This is the bending of light as it passes from one material into another
refraction
This is the term for the point where two bones meet.
joint
This nutrient is essential for building and repairing muscles.
protein
This term refers to species that no longer exist anywhere on Earth.
extinct
This state of matter has no fixed shape or volume and fills its container
gas
This is the repeated bouncing back of a sound wave.
echo
This is the medical term for a break in a bone.
fracture
This vitamin is produced by the body when skin is exposed to sunlight
vitamin D
This relationship benefits both organisms involved.
mutualism
This metal is liquid at room temperature
mercury
These are the seven colors seen when white light passes through a prism.
rainbow/spectrum
This is the smallest bone in the human body, found in the ear.
stapes
This process uses bacteria or yeast to preserve and transform food, as in yogurt or sauerkraut.
fermentation
This gas, released by burning fossil fuels, is a major driver of climate change.
carbon dioxide
This is the chemical symbol for platinum
Pt
This is the approximate speed of sound in air, in meters per second.
343 m/s
This tough connective tissue attaches muscle to bone.
tendon
This mineral, found in red meat and spinach, helps red blood cells carry oxygen.
iron