Measure- ment Graphing Scientific Method Definitions Miscellaneous 100 100 100 100 100 200 200 200 200 200 300 300 300 300 300 400 400 400 400 400 500 500 500 500 500
1m = __________cm
100 cm
300cL= _______mL
3,000mL
526Kg= ______g
526,000g
The label on a bottle of Pepsi indicates the bottle contains 895 mL of soft drink. How many liters of Pepsi are in the bottle?
0.895 L
A beaker contains 0. 48 L of acetic acid A beaker contains 0.48 L of acetic acid. What is the volume of this liquid in milliliters?
480mL
Name the three types of graph used most often in science
Line, bar, pie
What percentage of human blood is NOT red blood cells?
57
Which method of transportation is used most by adults?
Bus
What is the number of adults that do not use a vehicle as their method of transportation?
9
Determine the number of grams of sugar that will dissolve in 100 grams of water at 80oC
400g
A possible solution to a problem, educated guess
hypothesis
When designing an experiment, what is the first step?
Stating the problem
In this step the scientist records observations by making charts and graphs
Analyzing data
What step do you return to if your conclusion does not support your hypothesis?
Forming a Hypothesis
Conclusion Control Observation hypothesis In an experiment to determine whether the popping of popcorn is affected b the temperature at which it is stored, counting the popped kernels is an example of ? Conclusion Control Observation hypothesis
observation
Factor that does NOT change in an experiment
constant
An explanation of how and why a natural phenomenon behaves the way it does
Scientific theory
Standard by which the test results can be compared
control
Carrie did a study to compare the amount of matter in different types of vegetables. What is Carrie measuring?
mass
April performed an experiment that involved various liquids April performed an experiment that involved various liquids. In the experiment, she had to determine how much space was occupied by each liquid. What was April trying to determine?
volume
What is the symbol for centimeter?
cm
Lincoln is measuring the dimensions of his office Lincoln is measuring the dimensions of his office. If he measures the distance from one end of a wall to the other, what is he measuring?
length
Modern version of the metric system
SI
One one-thousandth is expressed by what prefix?
milli
Which experimental design would provide scientists with the best data for Investigating which type of feed yields the greatest gain in lean muscle mass in cattle? A. Test 5 different types of cows with the same feed mixture and measure their weight gain at the end of a 6-week trial. B. Test 5 similar groups of cows with the same feed mixture, give each group varying amounts of feed, and measure their weight gain at the end of a 6-week trial. C. Test 5 similar groups of cows with 5 different feed mixtures and measure their Weight gain at the end of a 6-week trial. D. Test 5 different types of cows with 5 different feed mixtures, give each group varying amounts of feed, and measure their weight gain at the end of a 6-week trial.
C. Test 5 similar groups of cows with 5 different feed mixtures and measure their Weight gain at the end of a 6-week trial.
You are testing to see how caffeine effects the heart rate of water flees. Two groups of water flees were tested. Group one received 300mg of caffeine and group two received no caffeine. The water temperature was kept at 20 degrees Celsius for both groups. Independent variable Dependent variable Constant control
You are testing to see how caffeine effects the heart rate of water flees. Two groups of water flees were tested. Group one received 300mg of caffeine and group two received no caffeine. The water temperature was kept at 20 degrees celcius for both groups. Independent variable - caffeine Dependent variable - heartbeat Constant – water temp, pop size Control – group 2