Biology Basics
What is the basic unit of life?
Cell
What is the chemical formula for water?
H2O
What force pulls objects towards earth?
Gravity
What planet is known as the Red Planet?
Mars
Name one renewable energy source.
Solar, wind or hydro
Which organ pumps blood around the body?
Heart
Solid
What is the formula for speed?
Speed = Distance / Time
What part of the atom has a positive charge?
What is the chemical symbol for gold?
Au
What gas do plants absorb during photosynthesis?
Carbon dioxide
What is the pH of a neutral substance?
7
What type of energy is stored?
Potential energy
What is the freezing point of water (°C)?
0°C
What happens to particles when temperature increases?
They move faster
What is the function of the mitochondria?
Produces energy (ATP)
What is the name for a substance that speeds up a chemical reaction without being used up?
Catalyst
What is the unit of force?
Newton
What system in the body controls responses and reactions?
Nervous system
What is the process where a liquid turns into a gas?
Evaporation
What process do cells use to divide and produce identical copies?
Mitosis
What type of bond involves sharing electrons?
Covalent bond
What Newton’s law states that every action has an equal and opposite reaction?
Newtons third law
What type of wave is light?
Electromagnetic wave
What is the relationship between mass and weight?
Weight = mass × gravity