1. TAKS Review
Objective 1
The student will demonstrate an understanding of the nature of Science.

2. Safe Practices When do we wear goggles?
When do we make up our own procedures?
What are MSDS sheets?
What is wafting?...demonstrate.
What do we do in case of a chemical spill?
What other items are used in case of emergency?

3. Safe Practices What is wrong in this picture?
Can you find at least 10?

4. Safe Practices
What is wrong in this picture?

5. Scientific Method Choose a problem Research Hypothesize a solution
Plan an experiment
Collect data
Analyze the data
Draw conclusions

6. Read This…

7. Read This…@ bottom of miniscus
Determine the scale…
How many marks between two numbers?
What’s the difference between two closest numbers?
Divide difference by the number of marks to get what each mark is worth. 10
40-30=10
10/10=1
Answer=36.5 mL

8. Read this…
Answer = mL

9. Read this too…
Answer = 6.6 mL

10. Read this…How much air?
Answer = 100+ mL

11. Read this…How big?
Answer = 2.5 cm

12. Read this mass…
Add up the numbers…
Answer = g

13. Read a graph… Answer = 10.5 s Answer = 3000 km Answer = 6.5 s
How long will it take a P Wave to reach a recording station 7000 km from the epicenter?
Answer = 10.5 s
How far from the epicenter is an S Wave that takes 10.5 s to reach the recording station?
Answer = 3000 km
What is the time interval between a P and S wave at a station that is 5000 km from the epicenter?
Answer = 6.5 s

14. Read the temperature…
Answer 4.5°C
Answer 21°C

15. A Topographic Map… is also know as a Contour Line Map
that shows elevation
by drawing lines connecting points of equal elevation;
these lines are called contour lines.

16. What is the contour interval?
Answer 200 km/5 lines = 40 km

17. What is the elevation of House 3?m
Answer 258 m
What is the elevation of House 3?
250
260

18. Reminders…
Be able to calculate percentages, averages, range, and frequency
Be able to determine a valid hypothesis or conclusion based on given information
Any questions???