Characteristics of Living Things
Homeostasis
Homeostasis- body temperature
Homeostasis- sugar levels
Scientific Method Steps Problem (Research) Hypothesis Experiment Analysis Conclusion
Problem/Research/Hypothesis Smithers thinks that a special juice will increase the productivity of workers. Hypothesis format: If the workers use the special juice, then their productivity will increase (# of stacks of paper).
Experiment He creates two groups of 50 workers each and assigns each group the same task (in this case, they're supposed to staple a set of papers). Group A is given the special juice to drink while they work. Group B is not given the special juice.
Analyze After an hour, Smithers counts how many stacks of papers each group has made. Group A made 1,587 stacks Group B made 2,113 stacks.
Conclusion Group A is given the special juice to drink while they work. Group A made 1,587 stacks Group B is not given the special juice. Group B made 2,113 stacks. Therefore, we can conclude…
Conclusion The special juice does not seem to improve productivity. It actually seems to make it worse!
Controls & Experimenting Control Group: Group B (not given the special juice) Experimental Group: Group A (given the special juice)
Identifying the Variables: Independent Variable: The special juice Dependent Variable: # of stacks of paper made
Line graphs- show change over time (2 sets of # data) Bar graphs- graph amount of something in different categories (1 number, 1 category)
How is a Theory different from a hypothesis?
Descriptive Data Blue 3 cm long Tall 1 door Round 127 people Furry Quantitative Data Blue 3 cm long Tall 1 door Round 127 people Furry 12 degrees C Humid 5000 km Loud 100 mL
Temperature: Celsius Length: Meters Mass: Grams Volume: Liters Metric System Temperature: Celsius Length: Meters Mass: Grams Volume: Liters
Metric Conversions King Henry Died, (m/L/g) Drinking Chocolate Milk.
King Henry Died, (m) Drinking Chocolate Milk. 400 km = ________ m 400 x 10x10x10= Or move decimal 3 to right = 400. = 400,000. m
King Henry Died, (L) Drinking Chocolate Milk. 200 mL = ________ L = 200. = .200 L