Science Adventure Stories by Alex Woolf

Author:Alex Woolf
Language: eng
Format: epub
Tags: Juvenile Nonfiction
ISBN: 9781398800649
Publisher: Arcturus Digital Limited
Published: 2020-07-23T09:59:56+00:00

Can you answer Tess’s question?

Answer

They manage to get the key out of the bottle and open the doors. Parked in the tunnel beyond is a pickup truck.

“We can put the reversium on the back of the truck,” says Mike.

“But how can we lift it on?” asks Andy.

“We could create a pulley,” says Molly. “We can use one of the bike’s wheels and the rope.”

However hard they pull, they cannot lift the reversium. “Maybe we should add another machine to this one?” suggests Andy, eyeing the remaining bicycle wheel and the wooden pole.

What machine can they add to the pulley to help them lift the reversium?

Answer

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