Dependent or independent variables?
action: adding different amounts of fertilizer to four...
Biology, 19.01.2020 11:31, jasminelara740
Dependent or independent variables?
action: adding different amounts of fertilizer to four different aquariums.
Answers: 3
Biology, 22.06.2019 02:30, ComicSans10
Sally and sue were investigating the topic of friction in science. they used a small car and a ramp as seen in the picture to test what they were learning. they knew that they slipped easily on waxed floors but not on carpet, so they decided to change the material on the surface of the ramp to see what happened. they planned to use glass, carpet, aluminum foil, and sandpaper and run the car down the ramp over each surface. what would be the best research question to guide the girls' experiment? a) does the amount of surface area affect the friction on the moving car? b) will the car travel fastest on the glass surface? c) how does the angle of the ramp affect the speed of the car? d)do rougher surfaces tend to create more friction than smooth surfaces?
Answers: 1
Biology, 22.06.2019 09:40, QueenMiah16
Explain how paleontologists use trilobite fossils as index fossils for various geologic time periods.
Answers: 1
Biology, 22.06.2019 11:30, nevejames07
What materials must dams have to produce electricity, and what must occur?
Answers: 1
Biology, 22.06.2019 11:30, pacoburden02
Explain the process that creates the heat of the sun?
Answers: 2
Biology, 15.07.2019 10:00
Biology, 15.07.2019 10:00
Biology, 15.07.2019 10:00