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What is the most dangerous thing in a science lab?

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Presentation on theme: "What is the most dangerous thing in a science lab?"— Presentation transcript:

1 What is the most dangerous thing in a science lab?
Tools and Procedures Humans! What is the most dangerous thing in a science lab?

2 Common Measurement System
Metric system – base 10 system Length is measured in: meters centimeters millimeters How big is this pillbug?

3 How long are these snails?

4 Volume (liters, ml) -how much space something takes up
-usually a measure of liquids - use a beaker or graduated cylinder

5 Mass - grams or kg

6 Temperature (celsius)

7 Class Activity - Data Collection
Measure your handspan. What units will you use? 2. Measure your height in the same units.

8 Analyzing Data - involves charts, graphs, models, images

9 Class Activity - Data Analysis
Create a data table that shows the height and handspan of everyone in your class (or row). 2. Make sure you have labeled it correctly. 3. Create a scatterplot graph of the data.

10 Microscopes - Scanning Electron Microscope (3D image)

11 - Transmission Electron Microscope (flat)
*both SEM and TEM can only image dead specimens

12 Light Microscope

13 Cell Cultures - single cell grown on nutrients will divide and form millions of cells

14 Cell Fractionation - cells broken and parts are separated

15 Check for Understanding:
1. What tool would you use to measure volume? ______________________ 2. What UNIT would the mass of a person be measured in? ____________________ 3. What type of electron microscope takes very thin images? _______________ What type takes 3D images? ____________ 5. What UNIT should you use to measure the length of a finger?


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