Life Science

Controlled experiment

An experiment in which only one variable is changed. Controlled experiment. A controlled experiment is a test where all conditions are kept the same except for one variable to determine its effect.

Hypothesis

A possible explanation or answer to a scientific question. Hypothesis. A hypothesis is a guess you can test to see if it explains how something works.

Law

A rule that always works under the same conditions. Law. In Science, a law is a statement that describes a consistent and universal principle of nature.

Life science

The study of living things. Life science. Life science is the branch of science that focuses on the study of living organisms and their vital processes.

Light microscope

Uses light and lenses to enlarge an image. Light microscope. A light microscope is a tool that helps us see tiny objects, like cells, by shining light through them and using lenses to make them look bigger.

Microscope

An instrument that uses lenses to magnify small objects. A microscope is a tool that helps us see tiny details of things invisible to the naked eye.

Scientific method

Includes gathering info, testing a hypothesis, analyzing data, and drawing conclusions. Scientific method. The scientific method is a process used to explore observations and answer questions systematically.

Theory

Explanation of observations supported by evidence. Theory. In Science, a theory is a well-substantiated explanation of some aspect of the natural world based on a body of evidence.

Variable

The factor that can change in an experiment. Variable. In Science, a variable is something you can change or measure in an experiment.