Which statement describes streak?
A. Streak refers to the light is reflected by a mineral.
B...
Biology, 08.02.2022 03:00, asanchez4292
Which statement describes streak?
A. Streak refers to the light is reflected by a mineral.
B. Streak is the last accurate way to identify minerals.
C. Streak is tested by scraping a mineral across a streak plate.
D. The color of the streak is the same as the color of the mineral.
Answers: 3
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Select three sports that require participants to be highly fit before the beginning a: snowboarding b: skydiving c: rock climbing d: bungee jumping e: free diving f: hiking
Answers: 1
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 13:00, lays20001
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