Measurement Scientific Definitions Method Graphing 100 100 100

Measurement Scientific Definitions Method Graphing 100 100 100 200 200 200 300 300 300 400 400 400 500 500 500 Miscellaneous

100 cm

300 c. L= _______m. L

3, 000 m. L

526 Kg= ______g

526, 000 g

The label on a bottle of Pepsi indicates the bottle contains 895 m. L of soft drink. How many liters of Pepsi are in the bottle?

0. 895 L

A beaker contains 0. 48 L of acetic acid. What is the volume of this liquid in milliliters?

480 m. L

Name 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 80 o. C

400 g

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

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 ? a. b. c. d. 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. 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. 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 300 mg 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 300 mg 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