Scientific Method
Give an example of a hypothesis.
Answers may vary.
A pure substance made of only one kind of atom
Element
Write this number in standard form: 4.5 x 102
450
It's 100 degrees Celsius. What is this in Kelvin?
373 K
Faith has 4 kilograms of a metal. How many grams of the metal does she have?
4,000 grams
What is the purpose of an experiment?
To test a hypothesis.
A mixture with layers
Suspension
Write this number in scientific notation: 8,500,000
8.5 x 106
It's 77 degrees Fahrenheit. What is this in Celsius?
25 degrees Celsius
Bryson spends three and a half hours at a coffee shop. How many minutes does he spend there?
210 minutes
Give an example of an inference.
Answers may vary!
What is viscosity?
how well liquid flows
Multiply these numbers and write the answer in standard form: 1.5 x 103 x 2 x 102
3 x 105
It's 0 degrees Celsius. What is this in Fahrenheit?
32 degrees Fahrenheit
Lukas measures the distance from his house to school to be 4,805 meters. What is this in kilometers?
4.805 kilometers
The process of scientists evaluating each others' work is called...
Peer review
Bree scratches a penny against a rock to see which one is harder. A copper-colored streak is left on the rock. Which substance is harder?
The rock (the penny got scratched off)
Which is more precise: 0.01 mL or 1 mL?
0.01 mL, because it can measure to the nearest hundredth; 1 mL can only measure to the nearest one
Matias measures the temperature to be 104 degrees Fahrenheit. What is this in Kelvin?
313 K
Eliana needs two liters of water to make lemonade, but she only has 1 liter of water. What fraction of the batch of lemonade will she be able to make?
1/2
Name three qualifications for a good scientific test.
Answers may vary, but could include: only one variable, repeatable, simple, uses resources one has access to, able to disprove hypothesis.
How does a colloid respond to these three tests: filter paper, seeing if it scatters light, and seeing if it has layers?
Colloids don't pass through filter paper, do scatter light, and don't have layers
Multiply these two numbers and write your answer in scientific notation: 8.55 x 103 x 9.1 x 106
7.7805 x 1010
Aliyah needs to change 800 Kelvin into Fahrenheit. Help her out!
980.6 degrees Fahrenheit
Dahlia measures her dollhouse to be three hundred square centimeters. How many square kilometers is this?
0.003 square kilometers