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In space, muscles get weaker and lose strength. These astronauts are going to Mars and it will take them 3 years to get there. My project will help with broken bones because in space your bones get very weak. My space chains will be rubber chains linked together. This will help to get your bones stronger and give you an arm workout. It works by moving your arms away from each other. The chains are hooked together and at the end of each of each chain, there is a “C” shaped hook and they all go together to create one whole bracelet. You can either work out your arms, or your legs and it could be with a partner or by yourself.
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