Measure- ment Graphing Scientific Method Definitions Miscellanious
1m = __________cm
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?
A beaker contains 0.48 L of acetic acid. What is the volume of this liquid in milliliters?
Name the three types of graph used most often in science
Line, bar, pie
What percentage of human blood is NOT red blood cells?
Which method of transportation is used most by adults?
What is the number of adults that do not use a vehicle as their method of transportation?
Determine the number of grams of sugar that will dissolve in 100 grams of water at 80 o C
A possible solution to a problem, educated guess
When designing an experiment, what is the first step?
Stating the problem
In this step the scientist records observations by making charts and graphs
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.Conclustion b.Control c.Observation d.hypothesis
Factor that does NOT change in an experiment
An explanation of how and why a natural phenomenon behaves the way it does
Standard by which the test results can be compared
Carrie did a study to compare the amount of matter in different types of vegetables. What is Carrie measuring?
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?
What is the symbol for centimeter?
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?
Modern version of the metric system
One one-thousandth is expressed by what prefix?
The students used correct lab practice when handling samples of pond water. Which practice is NOT an example of correct lab practice? A.Washing hands before and after each lab session B.Wearing disposable gloves C.Discarding samples down the drain D.Disinfecting the lab countertop before and after each lab session
B. Discarding samples down the drain
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