| A | B |
| Acceleration | The rate at which velocity changes over time |
| Amplitude | The maximum distance the particles of a wave travels from their rest position; the height of a wave. |
| Cell | The smallest unit of an element |
| Chemical Change | A reaction in a substance that changes its identity and result in the formation of a new substance. |
| Conduction | The transfer of sound, heat or electricity through direct contact |
| Conservation of Mass | The principle that mass cannot be created or destroyed. |
| Convection | Heat transfer in a gas or liquid by the circulation of currents from one region to another. |
| Compound | A substance made up of at least two different elements held together by chemical bonds. |
| Crest | The highest point of a wave |
| Electromagnetic Spectrum | The entire range of electromagnetic radiation. |
| Frequency | How many times a wave passes a given point in a specific amount of time. |
| Kinetic Energy | The energy of motion. |
| Lever | A simple machine made up of a rigid bar that sits on a fulcrum and is used to lift or move loads. |
| Light | Electromagnetic radiation that can be seen with the naked eye |
| Mass | The amount of matter in an object. |
| Matter | Anything that has mass and takes up space |
| Molecule | A single atom or a group of atoms bonded together |
| Physical Change | A change in matter that doesn’t change the identity of the matter. |
| Potential Energy | Energy stored in an object due to its position |
| Pulley | A simple machine consisting of rope and wheels with a grooved rim used to raise, lower and move loads. |
| Radiation | Emission of energy/heat in the form of rays or waves. |
| Thermal Energy | The kinetic energy of randomly moving molecules inside an object; depends on temperature and amount. |
| Trough | The lowest point of a wave |
| Volume | The measure of the amount of space an object takes up. |
| Weight | The force of gravity on an object. |
| Abiotic | Describes the nonliving part of an ecosystem including water, rocks, light, and temperature. |
| Adaptation | A behavior or characteristic of an organism, such as fur color or speed that increases its chance of survival in its environment. |
| Amphibian | A cold-blooded smooth-skinned vertebrate, which characteristically hatches as an aquatic larva with gills, then converts into an adult having air-breathing lungs. |
| Biotic | Describes the living part of an ecosystem, including humans, plants, animals etc. |
| Biodiversity | Having variety or diversity in the number and types of organisms living in a specific area. |
| Biosphere | The part of Earth in which living organisms exists and that is capable of supporting life. |
| Cell | The smallest unit of structure and function of living things. |
| Consumer | An organism that feeds on other organisms. |
| Ecosystem | The interactions between the biotic (living) and abiotic (nonliving) factors in an environment. |
| Environment | The sum of conditions affecting an organism, including all living and nonliving things in an area. It is made up of plants, animals, water, soil, weather, landforms, air etc. |
| Evolution | A theory that the various types of animals and plants have their origin in another preexisting types or organisms. |
| Exoskeleton | A hard outer structure, such as the shell of an insect or crustacean, that provides protection or support for an organism. |
| Fungus | A eukaryotic organism that reproduces by spores; including mushrooms, mold, yeast and mildew. |
| Genetic | Determined by the inheritance of genes. |
| Habitat | A place in an ecosystem where an organism lives |
| Invertebrate | An animal that has no backbone |
| Natural Selection | A theory stating that organisms having genetic variations that offer them an advantage towards survival. |
| Offspring | The product of reproduction |
| Organelle | The structures within a cell that performs specific functions. |
| Organ | A structure made up of tissues that are organized to carry out a specific function of the body. |
| Organism | Any living thing that carries out the various life functions for life. |
| Producer | An organism that makes its own food from the environment. |
| Prokaryote | Single-celled organisms that lack a nucleus. |
| Tissue | Similar cells that act together to perform a specific function. |
| Vertebrate | Any large group of chordates, characterized by having a backbone. |