3.02 Early Bird Task
NAME: ______________________
Write like a Scientist
DATE: _________ PERIOD: ______
I can write numbers in scientific notation.
pH LEVELS:
In chemistry, pH is a measure of the activity of dissolved hydrogen ions (H+). Liquids with low pH
values are called acids. Liquids with high pH values are called bases.
Find the pH of each liquid. Is the liquid a base, neutral, or an acid?
(1)
Lime Juice (H+) = 0.01
(2)
Egg (H+) = 0.00000001
(3)
Distilled Water (H+) = 0.0000001
(4)
Ammonia Water (H+) = 0.0000000001
(5)
Tomato Juice (H+) = 0.0001
(6)
Hydrochloric Acid (H+) = 1.0
PLANETARY DISTANCES
Match each planet with its distance from the Sun. Then write each distance in scientific
notation.
(1)
1,800,000,000 miles
(2)
67,000,000 miles
(3)
890,000,000 miles
(4)
93,000,000 miles
(5)
140,000,000 miles
(6)
2,800,000,000 miles
(7)
480,000,000 miles
(8)
36,000,000 miles
(9)
Do you think it is easier to match the distances when they are written in standard form or
in scientific notation? Explain in three sentences.
Taken from: Big Ideas Math Blue; Record and Practice Journal; Pgs. 223 & 224