Describe how sucrase catalyses the breakdown of sucrose. You should refer to Fig. 3.1. In your answer.

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?

Why is the statement not a hypothesis? sunflowers require soil and plenty of sunlight and water to grow and thrive.

Discuss how the research in this article shows how new technology and experimental methods can lead to changes in theories.what information did you include in your answer? check all that apply.