Test 1

Lab Safety

100

List one lab safety rule that we learned on lab safety day.

(:

200

Why must goggles be worn in the lab?

To protect your eyes from chemical splashes, steam, fire, or broken glass.

300

Where is the fire blanket located?

Front of the class by the door.

400

List 3 things that scientists wear to be safe in the lab.

Goggles, hair tie, long sleeve shirt, pants, closed toe shoes, gloves

500

What is the proper way to smell a substance in the lab?

Waft the scent towards your face with your hand.

Scientific Method

100

Fill in the blanks: A hypothesis is stated in a _____ , _____ format.

if , then

200

Fill in the blank: __________ can be represented in the form of a chart or graph.

Data

300

Fill in the blank: A(n) ___________ variable is one that the scientist changes on purpose.

Independent

400

List 3 control variables from the toothpick tower lab.

Time, sponges and toothpicks, lab partners, the classroom, the rulers, the instructor

500

Write a hypothesis for the following question: Which energy drink will give me the most energy?

Answer must be stated in an if , then format.

SI System

100

What is the SI unit that measures length/distance?

meters

200

What is the symbol of the SI unit that measures mass?

g

300

What is the symbol for the prefix milli?

m

400

Convert 300 mL to L.

0.300 L

500

Convert 300kg to g.

300 000

Scientific Notation

100

Fill in the blanks: Scientific notation is written with a number between __________ and __________.

1 and 10

200

Write the following in scientific notation: 12345

1.2345x10⁴

300

Write the following in scientific notation: 0.00035

3.5x10^-4

400

Write the following in standard notation: 9.8x10⁴

98000

500

Write the following in standard notation: 3.08x10^-6

0.000 003 08

Significant Figures

100

How many significant figures in the following number: 378

3 significant figures

200

How many significant figures in the following number: 32005

5 significant figures

300

How many significant figures in the following number: 98000

2 significant figures

400

How many significant figures in the following number: 200.000

6 significant figures

500

How many significant figures in the following number: 0. 000 000 000 400 560 300

9 significant figures