Astronomy- A branch of science that is involved with space.
Biotic Factors- Living organisms in an ecosystem.
Chemistry- Branch of physical science that studies composition, structure and properties.
Decomposer- An organism that breaks down or decomposes dead organisms.
Environment- Surroundings or conditions in which an animal, person or plant operates.
Fossils – Preserved remains or traces of animals, plants and other organisms from the past.
Grams- A metric unit of mass.
Habitat- Natural home or environment of an animal, plant or other organism.
Iron- Strong, hard silvery- gray metal.
Jupiter – The largest plant in the solar system.
Kilogram- Base unit of mass in the International System of Units.
Laboratory- A room or building equipped for science experiments.
Mass- A large body of matter with no definite shape.
Nickel- A silvery- white metal
Observe- To notice or perceive something.
Planets- Celestial bodies that move in an elliptical orbit around the sun.
Quantity – The amount or number of a material or immaterial thing.
Ribosome- Makes proteins in the cell.
Solid- Firm and stable in shape.
Theory- Ideas intended to explain something.
Universe- All existing matter and space considered as a whole.
Velocity- Speed of something in a given direction.
Weight- The heaviness of a person or a thing.
X-Ray- Form of electromagnetic radiation.
Yeast- Single celled microorganisms.
Zygote- Diploid cell resulting from the fusion of two haploid gametes.