Presentation is loading. Please wait.

Presentation is loading. Please wait.

Warm –up: What is the density of the block? CUBE DESCRIPTION Material Plastic Length of each side 2 cm Mass 24 grams Weight 6.6 N.

Similar presentations


Presentation on theme: "Warm –up: What is the density of the block? CUBE DESCRIPTION Material Plastic Length of each side 2 cm Mass 24 grams Weight 6.6 N."— Presentation transcript:

1 Warm –up: What is the density of the block? CUBE DESCRIPTION Material Plastic Length of each side 2 cm Mass 24 grams Weight 6.6 N

2 Unit 1 Review Lab Safety Tools Measurement

3 1.What are the steps you should follow if an accident occurs in the lab? 1.Stay Calm ***2. Tell the teacher 3. Follow directions

4 2.When cleaning up a lab where materials contain bacteria, when should you wash your hands? Wash hands with soap and water after everything has been cleaned up.

5 3.What is the primary reason for cleaning and properly storing lab equipment after you finish a lab? * So materials do not become contaminated.

6 4. How will you know the correct way to dispose of a chemical after a lab? Pour the chemical into a special waste container as instructed by the teacher.

7 5. How would you position a test tube over an open flame? Use a test tube holder to hold the test tube over an open flame.

8 6. Give an example of how you can conserve materials in a lab? ***Limit the amount of materials used during the investigation.

9 7. What are some laboratory items that can be safely reused? Glassware can be reused by washing it. Examples: graduated cylinders, beakers, * Petri dishes, flasks

10 8. Why do we waft chemical vapors instead of just smelling them? ***We waft vapors to protect the respiratory track from strong harmful vapors.

11 1. What is the formula for Density? Density is mass/volume

12 2. Which tools would you need to find density of a cube? You will need a balance and ruler.

13 3. What steps must you follow when measuring liquids with a graduated cylinder? ***Place cylinder on a level surface ***Get down at eye level. ***Measure at the bottom of the meniscus. Count out the scale!!!

14 4. What might a Petri dish be used for? ***growing bacteria samples

15 Tools Word Bank A)This tool is used to measure mass. Triple beam balance SI Unit grams

16 B)The _____________ measures liquid volume. graduated cylinder SI Unit mL

17 C)Length is measured with a ________. metric ruler SI Unit meter

18 D)A ___________ is used to measure temperature. thermometer SI Unit Celsius

19 E)Weight is measured with a _________. spring scale SI Unit Newtons

20 F)Timing things in a lab is done with a ______________. stopwatch SI Unit seconds

21 Weight Density Speed (N) (g/mL) (cm/s) 9. What tools would be used to collect data for the table above? (hint…there should be five tools ) Spring Scale Balance Graduated Cylinder Metric Ruler Stop Watch

22 Measurement Tool SI Unit mass balance X Y graduated cylinder mL length metric ruler cm Weight Z N g gram volume Spring scale 8. According to the data table above, what would belong at points X, Y and Z?

23 7. What is the difference in the actual width of the two trees? Scale: 1 cm = 3 m

24 6. Find the average (mean) height of the two columns?

25 5. What is the average (mean) length of the three lines?

26 4. Find the volume of the box. 6 cm 2 cm


Download ppt "Warm –up: What is the density of the block? CUBE DESCRIPTION Material Plastic Length of each side 2 cm Mass 24 grams Weight 6.6 N."

Similar presentations


Ads by Google