ACT 2024 Science Vocabulary

Electrons

negative charge

protons

positive charge

neutrons

neutral charge

ions

atoms with a positive or negative charge

autotrophs

organisms that produce their own food; primary producers

Photosynthesis

Converting carbon dioxide into glucose

Chlorophyll

pigment used during photosynthesis

Heterotrophs

consumers; consume other organisms for nutrition

Cellular respiration

organisms convert sugars into energy

Aerobic Respiration

requires oxygen

Prokaryotes

single-celled organisms; don’t contain a nucleus or organelles

eukaryotes

cells with a well defined nucleus

Density

mass/volume

Density increases as _____ increases

mass

Density decreases as ________ decreases

volume

In a chemical reaction, reactants are on the ____ of the equation

left side

In a chemical reaction, _____ are on the right side of the equation

products

Volume and pressure are ___________

inversely proportional

Temperature is _________ related to pressure and volume

directly

Kinetic energy

form of energy that an object possesses due to its motion

Independent Variable

affects or creates the dependent variable

ex. time, temperature, and depth

Dependent Variable

created or affected by an independent variable

ex. volume, solubility, pressure

Direct Relationship

As x increases, y increases

As y increases, x increases

Inversely Relationship

As x increases, y decreases

As y increases, x decreases