How many total numbers in the 5 statements below have 2 significant figures?
· The mass was measured to be 0.02 gram
· The object massed at 2.25 lbs
· I measured a length of 40 cm
· There were 24 crayons in the box.
· I measured the height to be 1.0 m
Question 2
2.
How many total numbers in the 5 statements below have 3 significant figures?
· The mass was measured to be 0.00250 gram
· There are 220 lbs of flour
· There are 291 students present
· I measured a length of 40 cm
· The height of the box is 21.0 cm
Question 3
3.
What is the independent variable for the experiment?
Question 4
4.
What is the dependent variable for the experiment?
Question 5
5.
Select the correct set of properties for the following: salt water is boiling
Question 6
6.
Select the correct set of properties for the following: foam forms when vinegar and baking soda are mixed.
Question 7
7.
Ariel weighed an object on her balance and recorded a mass of 24.3 grams. Her teacher told her that there was obviously something wrong with her balance because it should have been 35.1 grams. What is her percent error?
Question 8
8.
Ariel weighed an object on her balance and recorded a mass of 35.1 grams. Her teacher told her that there was obviously something wrong with her balance because it should have been 24.3 grams. What is her percent error?