The problem was
Which can help you pull a wagon full of books?
a Lever
b screw
c fulcrum
d wheel and axle
Question on paper
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Re: Question on paper
The Ask an Expert forums are for students (and families) working on hands-on science projects.
If you have questions about these terms, this resource on simple machines may be useful.
https://www.sciencebuddies.org/science- ... background
Amy
Science Buddies
If you have questions about these terms, this resource on simple machines may be useful.
https://www.sciencebuddies.org/science- ... background
Amy
Science Buddies