| A | B |
|---|
| scientist | a person who studies nature and the universe |
| universe | everything that exists, including stars and planets |
| experiments | tests used to find out why something happens |
| scientific method | a step-by step model for solving problems |
| observation | paying close attention to something |
| hypothesis | a smart guess |
| conclusion | a statement about the result of an experiment |
| laboratory | the place where a scientist studies and experiments |
| microscope | a machine used to study very small things |
| telescope | a machine used to study things very far away |
| measurement | the size, number, or amount of something |
| length | how long something is |
| weight | how heavy something is |
| volume | amount of space something takes up |
| metric system | a system of measurement used by scientists |
| fields | special types of science |
| life science | the study of living things |
| organisms | living things |
| characteristics | the special features that make living things different from one another |
| physical science | the study of matter and energy |
| energy | the stuff that makes up everything in the universe |
| energy | can't be seen or held; makes a thing able to move itself or cause something to move |
| earth science | the study of the Earth, sun, moon, planets and stars |
