Tools We Will Use Compound Light Microscope Used

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

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

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

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

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?

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

Test Tubes Regular 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 testtube rack Flat bottom test tubes Do a fine job of standing up on their own

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

Goggles! What are these used for? ? ?

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

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

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

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

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. 54 cm One foot is 30. 48 cm

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

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