Astronomy The table shows the mass of the planets, the sun and the moon in our solar system.


A. Write the mass of each planet and the Moon in scientific notation.


B. Order the planets and the moon by mass, from least to greatest.


C. Which planet has about the same mass as earth?


(A)


B. Planets and the moon by mass, from least to greatest are:


(i) Pluto-1.27 × 1022


(ii) Moon-7.35 × 1022


(iii) Mercury-3.3 × 1023


(iv) Venus-4.87 × 1024


(v) Earth-5.97 × 1024


(vi) Uranus-8.68 × 1025


(vii) Neptune-1.02 × 1026


(viii) Saturn-5.68 × 1026


(ix) Jupiter-1.9 × 1027


(x) Mars-6.42 × 1029


(xi) Sun-1.99 × 1030


C. Venus(4.87 × 1024) has about the same mass as Earth(5.97 × 1024).


129
1