| A | B |
|---|
| What is the freezing point of water in Celsius? | zero |
| What is the boiling point of water in Celsius | 100 |
| The metric system is based on multiples of ____. | ten |
| The basic unit of length in the metric system is the ____. | meter (1 meter is about 1.1 yards in length) |
| The basic unit of mass in the metric system is the ___. | gram (there are 28 grams in an ounce) |
| The basic unit used to measure volume in the metric system is the ___. | liter (1 liter is slightly larger than 1 quart). |
| Scientists use ____ to help them recognize patterns in their data. | graphs |
| The type of microscope that most high school students use is called a ____. | compound light microscope,  |
| Which type of microscopes must be used if you want to magnify objects more than 1000 times, up to 250,000 times? | electron microscopes |
| Which type of electron microscope produces very detailed 2-dimensional images? | TEM (transmission electron microscopes),  |
| Which type of electron microscopes produce 3-dimensional images of the surface of objects? | SEM (scanning electron microscopes),  |
| Electron microscopes can't observe ___ cells. | living |
| A _____ is a group of identical cells grown in a petri dish filled with a nutrient solution. | cell culture |
| If you want to study just one part of a cell, you can put the cells into a blender to break them up, then into a _____ which spins around very quickly, causing the densist parts to separate and settle to the bottom of the test tube. This separates the cell parts by density in a process called ____. | centrifuge, cell fractionization |
| What is the single most important safety procedure in the lab? | Always follow your teachers written and verbal instructions exactly. |
| Because biologists might come in contact with microscopic disease causing organisms that they can't see, an important safety procedure to follow is to ___ . | always wash your hands after you are finished |
