What is the mass and size of the earth?

The mass on the moon and the earth is the same but the weight changes.

None in our solar system. Mars and mercury are much smaller and Venus is about the same size - a bit smaller. The four gas giants are all much bigger.

The moon is smaller, and the earth is little bit bigger.

The size of Earth can be accurately estimated by satellite measuring devices and simple geometry. The density of Earth can be derived by the effect of its gravitation on other nearby planetary bodies.

venus is slightly smaller then earth. If earths mass equaled 1 then venus would be about a .82, If earth's volume was 1 venus would be .86. you have to go 6.4 miles per sec. to get off venus. Earth...