Grafting Choice Board Project 4.02 Choose from the following options and pick four of these (there will be 3 that you do not complete). Each one of your choices is worth up to 25 points, making this project a 100-point project. Be sure to include all parts of the choice board and label them when uploading.

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?

2. sketch the inside of the bean nodule, and describe or label what you observed with the hand lens.

Which type of transport is responsible for oxygen entering into blood cells? a. vesicle b.passive c. facilitated d.active b.passive