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

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

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

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

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

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

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

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

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

Goggles! What are these used for??? 10

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

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

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

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

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

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

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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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