Science Exam

1. Why is it necessary to read the label of your chemical containers? (3)

It is necessary to read it because the label show name of chemical that are contained in it. By reading it we can know what for the substance is. Another reason is to check appropriate hazard warning, so it can be safety used.

2. Why is it important to use proper hand washing techniques during and after the lab? (3)

It is important for preventing the spread of biological contamination. So, we can keep our health during and after lab and get better result during the lab.

3. If you drop glassware in the lab, what is the first thing you should do and how should it be disposed of? (3)

Carries and handle it properly when we want move it.

It should be dispose in two ways:

- Dispose of non-infectious laboratory glassware/plastic ware in one container

- Don’t dispose with the other items

4. Why is it important not to eat or drink in the lab? (3)

The main reason why eating and drinking prohibited is because to keep ourself from hazardous material. It can impact an individual, a work unit, or the institution in safety and healthy performance.

Mystery of the Gecko/Scientific Investigation: unit 1

5. What steps are involved in using the scientific method? (4)

a. Make observations

b. Ask question

c. Check accumulated scientific data

d. Formulate Hypothesis

e. Make predictions

f. Run controlled experiment

g. Make conclusions

h. Accept of Reject Original hypothesis

i. Report findings

6. What metric unit is used to measure volume? (3)

The metric unit to use measure volume is liter. Starting from kiloliter to milliliter.

7. What metric unit is used to measure mass? (3)

The metric unit to use measure mass is gram. Starting