Biology, 24.07.2019 09:00 hannahpalacios101
Which of the following is likely to indicate a chemical change? a. the disappearance of a solid stirred in water b. production of gas bubbles c. a decrease in size d. a change of temperature in sunlight
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Biology, 22.06.2019 02:30
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 08:00
Explain why biological control methods are generally environmentally superior to chemical pest control methods.
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Biology, 22.06.2019 10:00
Students commonly confuse saccharomyces cerevisiae and staphylococcus aureus when viewed on a microscope slide how could you microscopically differentiate
Answers: 1
Biology, 22.06.2019 10:30
Grasses--> mice--> cats--> coyotes suppose 10,000 units of energy are available at the level of the grasses. what is the total number of energy units lost by the time energy reaches the coyote?
Answers: 2
Which of the following is likely to indicate a chemical change? a. the disappearance of a solid sti...
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