a procedure carried out under controlled conditions in order to discover an unknown effect or law, to test or establish a hypothesis, or to illustrate a known law

the branch of science concerned with the structure and properties of matter and energy

is a representation of an idea, an object or even a process or a system that is used to describe and explain phenomena that cannot be experienced directly

are made with instruments such as rulers, balances, graduated cylinders, beakers, and thermometers. These results are measurable and use numbers

is an organized scientific study of the natural world that may include making systematic observations, asking questions, gathering information, analyzing data, summarizing results, drawing conclusions, and/or communicating results.

means you repeat your sequence of instructions a certain number of times

are the things that the scientist focuses his or her observations/measurements on to see how they have responded to the change made

is a statement about the future. It's a guess, sometimes based on facts or evidence, but not always

uses observations and measurements to explain something we see in the natural world, should match the evidence, and be logical

is a well-tested idea to explain a phenomenon and is accepted until it is proven wrong.

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