Biology
What organelle is responsible for energy production in cells?
Mitochondria
What is an atom?
The basic unit of matter
What is Newton’s First Law of Motion?
Object stays at rest or in motion unless acted on by a force
What is the difference between weather and climate?
Weather = short-term; Climate = long-term patterns
What causes day and night?
Earth’s rotation
What is natural selection?
Process where organisms with favorable traits survive and reproduce
What is pH a measure of?
Acidity or alkalinity
What is kinetic energy?
Energy of motion
What are the three main types of rocks?
Igneous, sedimentary, metamorphic
What causes the seasons?
Tilt of Earth’s axis and revolution around the Sun
What is DNA?
Molecule that carries genetic information
What is the difference between a mixture and a compound?
Mixture = physically combined; Compound = chemically combined
What is the difference between mass and weight?
Mass = amount of matter; Weight = force of gravity on mass
What causes tides?
Gravity from the Moon and Sun
What is a light year?
Distance light travels in one year
What is the basic unit of life?
Cell
What is oxidation?
Loss of electrons
What is Newton’s Third Law of Motion?
Every action has an equal and opposite reaction
What is the difference between magma and lava?
Magma is underground; lava is on Earth’s surface
What is the difference between rotation and revolution?
otation = spinning on axis; Revolution = orbiting another object
What is the difference between mitosis and meiosis?
Mitosis: identical cells; Meiosis: gametes with half the chromosomes
What are the three subatomic particles?
Protons, neutrons, electrons
What is Ohm’s Law?
Voltage = Current × Resistance
What is the greenhouse effect?
Trapping of heat by gases in the atmosphere
Which planet has the largest mass in the solar system?
Jupiter