Unit 5 – Manned Space Exploration Mass vs Weight

 The amount of matter something contains.  Does our mass change in space?  NO

 The measurement of the pull of gravity on an object.  When you step on a scale, it is actually measuring the attraction between you and the Earth and gives you a number in pounds.  Does our weight change in space?  YES

 Why does our weight change when we go into space?  If we went from Earth to Mars, our weight would change because Mars has less gravity than Earth.  A small planet has less gravity and a larger planet has more gravity.