1. Week 2
1. Identify the correct way to write in scientific notation
5.42 X C X 102
5.42 X D X 103
2. Joseph measures out 25 mL of distilled water for his chemistry experiment. How many liters of water is this?
0.25 L
0.025 L
2.5 L
2.5 x 10-3 L

2. 3. Which is the metric unit for measuring mass?
foot c. kilogram
pound d. ounce
4. A lizard has a mass of 0.98 grams. What is the mass of the lizard in milligrams? mg
9.80 mg
98 mg
980 mg

3. 5. Graduated cylinders are marked in units of Grams c. Millimeters
Meters d. Milliliters
6. A teacher gives a student a metal bar. The teacher asks the student to calculate the bar’s volume using the formula V = l x w x h. The bar is 3.5 cm long, 10 mm high, and 2.0 cm wide. What is the volume of the bar in cm3?
0.7 cm3
7 cm3
70 cm3
700 cm3

4. 7. Which property of matter is determined by measuring the pull of gravity on a sample of matter?
Weight C. Volume
Mass D. Acceleration
8. Which of the following represents a quantitative statement about the mass of an object?
The object is heavier than wood
The mass of the object is 23.5 grams
The object’s mass indicates that it has a high density
A balance can be used to quantitatively determine the mass of an object.

5. 9. Which subatomic particles are found in the nucleus of an atom?
Protons and electrons
Electrons and neutrons
Protons and neutrons
Protons, neutrons, and electrons
10. The number of protons in a neutral atom is equal to the number of
Electrons
Neutrons
Ions
isotopes