chemistry
What is the chemical symbol for potassium?
K
What part of the cell contains the genetic material?
What force pulls objects toward the center of the Earth?
gravity
What gas do plants absorb during photosynthesis?
Carbon dioxide
What is the name of the galaxy that contains our Solar System?
The Milky Way
What is the pH of a neutral solution at 25 degrees Celsius?
7
What is the main function of mitochondria?
Producing energy/cell respiration
What is the unit of electrical resistance?
Ohm
What is the most abundant greenhouse gas?
water vapor
Mars
What are organisms that can produce their own food?
Autotrophs
State Newton's third law of motion?
For every action, there is an equal and opposite reaction
What is the most common type of pollution?
Air pollution
What is a light year a measure of?
Distance
What happens when an acid and a base react?
neutralization, producing salt and water
What is the structure of cellulose
a linear, unbranched structure made of long chains of beta-glucose units linked by beta (1-4) glycosidic bonds
What happens to the frequency of a wave as its wavelength decreases?
What are the main minerals in water?
calcium, magnesium, and sodium
What happens when the Earth is directly between the Sun and the Moon?
A full moon
What is Newton's first law of motion?
Law of Inertia
What molecule carries oxygen in red blood cells?
Hemoglobin
What is the equation that relates energy to mass, according to Einstein?
E=mc^2
What natural process removes carbon dioxide from the atmosphere and stores it in trees and soil?
Carbon sequestration
What planet has the most moons in our solar system?
Jupiter