By clicking continue, your current session will end.
Select Your Partner Organization
If you are already registered on our website, you can sign in by selecting your partner organization below, then entering your email address and password on the next screen.
Kids use simple machines every day without realizing it. Teeth are wedges and so are knives, forks, and thumbtacks. A lot of toys and playground equipment such as slides, which are inclined planes, and seesaws, which are levers, are also simple machines. Two appealing kids and their comical cat introduce familiar simple machines and explain how they work.
Kids use simple machines every day without realizing it. Teeth are wedges and so are knives, forks, and thumbtacks. A lot of toys and playground equipment such as slides, which are inclined planes, and seesaws, which are levers, are also simple machines. Two appealing kids and their comical cat introduce familiar simple machines and explain how they work.
