Q129 of 196 Page 249

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).


More from this chapter

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127

An insect is on the 0 point of a number line, hopping towards 1. She covers the distance from her current location to 1 with each hop. So, she will be at after one hop, after two hops, and so on.


a. Make a table showing the insect’s location for the first 10 hops.


b. Where will the insect be after n hops?


c. Will the insect ever get to 1? Explain.

 128

Predicting the ones digit, copy and complete this table and answer the questions that follow.

Powers Table



A. Describe patterns you see in the ones digits of the powers.


B. Predict the ones digit in the following:


1. 412


2. 920


3. 317


4. 5100


5. 10500


C. Predict the ones digit in the following:


1. 3110


2. 1210


3. 1721


4. 2910

 130

Investigating Solar System The table shows the average distance from each planet in our solar system to the sun.


(A) Complete the table by expressing the distance from each planet to the Sun in scientific notation.


(B) Order the planets from closest to the sun to farthest from the sun.

 131

This table shows the mass of one atom for five chemical elements. Use it to answer the question given.


A. Which is the heaviest element?


B. Which element is lighter, Silver or Titanium?


C. List all five elements in order from lightest to heaviest.