Term | Definition |
Balance | An instrument or weighing (determining mass); a steady position or condition that occurs when there are two equal and opposing forces. |
Buoyancy | The upward force that a fluid exerts on an object that is placed in it; the tendency of an object to float in a fluid. |
Buoyant force | The pressure pushing up on an object in water or air. |
Calibrate | To check, adjust, or measure exactly; to put the measuring marks on a spring scale, thermometer, or other similar device. |
Controlled experiment | A scientific investigation in which one variable is changed and all the others are kept the same, or constant. |
Data | Information, such as that gathered during an experiment. |
Dense | Packed closely together. |
Density | The amount, or mass, of a specific volume of a substance. |
Displacement | The process by which an object pushes aside the liquid into which it has been placed. |
Distribute | To spread out. |
Equal | The same in amount, size, value, quality, or other characteristics. |
Float | To rest on or at the surface of, or be suspended in, a liquid. |
Gram | A unit of mass in the metric system. |
Gravity | The attraction of the earth or other bodies for any object at or near their surface. The force of gravity depends on the masses of the objects and how far apart they are. |
Liquid | A substance that has no shape but does have volume. |
Mass | The amount of matter than an object contains. Mass is expressed in grams or ounces. |
Sink | To move downward; to go to the bottom of. |
Solid | A substance that takes up space and has its own shape. |
Solution | A liquid in which something has been dissolved. |
Submerge | To put under water or other liquid. |
Volume | The amount of space that a substance takes up. |
Weigh | To measure how heavy something is. |
Weight | A measurement of the force of gravity on an object. |
Classify | to group things together because they share one or more properties. |
Hypothesize | a prediction about how something works or how two variables are related. |
Predict | saying what you think will happen. |
Organize | arrange things in a certain order or plan them in a certain way. |
Compare | identify ways that things are the same. |
Collaborate | Work together with other people. |
Critique | looking at something carefully to find things that could be improved. |
Claim | saying something is true |
Evidence | something you believe is true because you saw, experienced, or read about it |
Reason | think about something in an orderly, logical way. |
Design | create a plan for something |