For which of these questionls could a testable hypothesis be developed? Check all that apply.
Do children's heart rates increase at the same speed when walking uphill?
O Is
experimenting with moldy bread more fun than experimenting with yogurt cultures?
D Does temperature affect how long blood can be stored?
How does moisture affect the growth of moss on a tree?
Which of Leeuwenhoek's microscopes was
the coolest?
Done
Intro