Is the following a qualitative or quantitative observation?
The snake is 60 cm long.
Quantitative
100
Convert 56C to F
132.8 F
100
Write this number in scientific notation:
4,200,000,000
4.2 x 10^9
100
Write a conversion factor showing 24 hours = 1 day.
1 day / 24 hours
100
What are the units for density?
g / mL
200
What step in the scientific method comes after making a hypothesis?
Testing your hypothesis
200
What is the equation for density?
Density = mass / volume
200
Write this number in standard notation: 8.9 x 10-7
0.00000089
200
How many millimeters are in one kilometer?
1,000,000 mm
200
What is the difference between mass and weight?
Weight changes, your mass does not change.
300
What is the difference between an observation and an inference?
An observation uses your five senses to make sense of the world. An inference is a guess based off your observation.
300
Convert 72 K to Fahrenheit
- 330 F
300
Perform the following:
3.45 x 10-3 + 4.981 x 10-5
3.45 x 10^-3
300
How many cg are in 25 hg?
2.5 x 10^5 cg
300
An observation that is based on numbers
Quantitative
400
Correct the order of the steps of the scientific method:
Make a hypothesis
Question
Test your hypothesis
Report your results
Make a conclusion
Question
Make a hypothesis
Test your hypothesis
Report your results
Make a conclusion
400
What is the density of an object with a mass of 15.5 g and a volume of 3.2 mL?
4.84 g/mL
400
Perform the following:
5.0 x 10^6 / 2.5 x 10^4
2.0 x 10^2
400
How many pounds are in 250 mg?
( 1 pound = 0.4536 kg) (10^6 mg = 1 kg)
5.5 x 10^-4 pounds
400
What is density?
The ratio of mass to volume
500
Make a hypothesis from this question: How tired will I be if I run 6 km? (If ________, then __________)
I run 6 km, then I will be very tired.
500
What is the mass of an object that has a density of 4.5 g/mL and a volume of 12.5 mL?
56.25 grams
500
Calculate the following:
(8.47 x 10^13 - 7.1 x 10^10) / (6.12 x 10^4 x 3.94 x 10^6)
3.5 x 10^2
500
A person can run 25.5 miles per hour. How far can they run in millimeters per second?
(1 mile = 5280 ft) (1 ft=12 inches) (1 inch=2.54 cm) (1 cm=10 mm) (1 hour = 60 minutes) (1 min = 60 seconds)
1.14 x 10^4 mm/s
500
What is the difference between a hypothesis and an inference?
A hypothesis is tested using an experiment. An inference is just a guess based on observation.