physics
chemistry
biology
ess
100

what is the basic unit of force in the International System of Units (SI)?

N

100

what is the chemical formula for water?

H2O

100

what organelle is responsible for ATP synthesis?

mitochondria

100

what is the process called when water vapor in the atmosphere condenses and falls to the ground as rain, snow, or hail?

precipitation

200

what is the equation in Newton's 2nd law?

F=ma

200

what is the pH value of a neutral solution like pure water

7

200

what is the process of converting sunlight into chemical energy in plants?

photosynthesis

200

what term is used to describe a species that is not native to an ecosystem and causes harm?

invasive 

300

what principle states that energy cannot be created or destroyed, only transformed?

The Law of Conservation of Energy

300

what element is represented by the symbol ‘K’?

potassium

300

what molecule carries genetic information in most living organisms?

DNA

300

what term describes the removal of trees from a forested area without adequate replanting?

deforestation

400

what is the phenomenon in which a wave changes direction as it passes through a different medium

refraction

400

what type of bond involves the sharing of electron pairs between atoms

covalent bond

400

what is the name of the process by which cells divide and create two identical daughter cells?

mitosis

400

what type of feedback loop amplifies change in a system, potentially leading to more instability?

positive feedback

500

what Greek letter is used to represent the coefficient of friction?

µ

500

what is Avogadro's number?

6.02×10^23

500

what are the four major classes of biological macromolecules?

proteins, carbohydrates, nucleic acids, and lipids

500

what is the name for a species whose presence or absence has a disproportionately large effect on its ecosystem?

keystone species