1. Tools We Will Use Compound (Light) Microscope
Used to examine small objects.
Uses Two lenses.
That's why it's called a “compound” microscope! 1

2. Tools We Will Use Ehrlenmeyer Flask Used to measure and heat liquids.
Standard units are milliliters (ml). 2

3. Tools We Will Use Beaker Used to measure liquids.
Standard units are millimeteres (ml).
Oh, ummmmmm..... 3

4. Tools We Will Use OOPS! Wrong Beaker! THIS is the right beaker!
Used to measure liquids.
Standard units are milliliters (ml). 4

5. Tools We Will Use Graduated Cylinder Used to measure Volume of liquids
Standard units are milliliters (ml)
- More accurate than a Beaker
Always measure at bottom of Miniscus
What's a miniscus? 5

6. Meniscus Liquids which are water based have several cool properties...
Water has magnetic traits
Because of this, each water molecule is attracted to other water molecules AND attracted to different molecules at the same time!
In a graduated cylinder, this causes the top of the liquid to form a “curve” (meniscus)
Always read measurements from the bottom of the meniscus

7. Specimen Slides Normal Glass specimen slide
Used to view specimens
Concave Glass specimen slide
Used to view specimens in liquid 7

8. Test Tubes Regular test tubes Flat bottom test tubes
Used for mixing liquid and/or liquid specimens
Used in chemical experiments
Can't stand up on their own, so they need a test- tube rack
Flat bottom test tubes
Do a fine job of standing up on their own 8

9. Test Tube Holders Test tube rack Test tube holder
Used to hold curved bottom test-tubes
Test tube holder
Used when handling hot test tubes 9

10. Goggles!
What are these used for??? 10

11. Pipettes
Used to transfer small amounts of liquid from one container to another 11

12. Scale Regular Scale Electronic Scale Used to measure weight (in grams)
More accurate than a regular scale 12

13. Hot Plates
Used to heat liquid substances in glass or porcelain containers
Can get VERY hot!

14. Tweezers
Used for picking up objects too small to be easily handled 14

15. Medicine Dropper Bottle & Dropper
Used to deliver small amounts (drops) of liquid substances 15

16. Metric Ruler & Meter Stick
Both are used to measure length
In Biology, we will measure in centimeters (cm) or millimeters (mm)
One Meter is longer than One Yard!
One Inch is 2.54cm
One foot is 30.48cm 16

17. Thermometer Used to measure temperature
The standard unit of measurement is Celsius
Zero degrees Fahrenheit is equal to 32 degrees Celsius

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21. Try to Name the Tools
Next to each image of a tool used in this science class, list:
The name of the tool
It’s possible use 21