4th Grade--Review 6

1.                  beaker—used for mixing and heating substances
2.                  conclusion—tells the answer to a scientific problem
3.                  dense—closely packed together; thick
4.                  experiment—an activity designed to test a possible answer to a scientific question
5.                  goggles—glasses to protect your eyes
6.                  graduated cylinder—an instrument used to measure the volume of a liquid
7.                  hazard—a danger or a risk
8.                  hypothesis—what you think might happen; a scientific guess
9.                  observation—data gained by using any of the five senses
10.              pipette—a plastic tube used to drip water
11.              precaution—something done in advance to prevent harm or danger
12.              safety—keep from harm
13.              saturated—the point where no more can be absorbed
14.              solution—a mixture of two or more substances
15.              trial—each time an experiment is completed