1. Solar System Inventory

2. Scale modeling the Solar System
Solar System in Your Pocket
You can find the link to this activity on line here:

3. Play Dough model of the Solar System
You can find the activity we did in class here:

4. Where is the camera?

5. Where is the camera?

6. Where is the camera?

7. Handout:
SUN SIZE Part 1

8. Ratios in Science
𝐷𝑖𝑛𝑜 𝐻𝑒𝑖𝑔ℎ𝑡 𝑃𝑒𝑟𝑠𝑜𝑛 𝐻𝑒𝑖𝑔ℎ𝑡 =

9. KILO (k) CENTI (c) MILLI (m)
Scientific Prefixes
KILO (k)
CENTI (c)
MILLI (m)
1000
One Thousand
1 100 =.01
One Hundredth
=.001
One Thousandth
How many meters (m) are there in 56 kilometers (km)?
How many centimeters (cm) are there 2 meters (m)?
How many millimeters (mm) are there in 3 meters (m)?

10. Create a scale conversion factor
If the Sun were scaled to 50 cm, how many kilometers are represented by 1 cm? The diameter of the Sun is 1,390,000 km. 𝐴𝑐𝑡𝑢𝑎𝑙 𝐷𝑖𝑎𝑚𝑒𝑡𝑒𝑟 𝑆𝑐𝑎𝑙𝑒 𝐷𝑖𝑎𝑚𝑒𝑡𝑒𝑟 = There are _______ kilometers per 1 centimeter

11. Example: The size and distance of Planet X
Data table for planet X
Actual Distance (km)
Scale Distance (cm)
Actual Diameter (km)
Scale Diameter (cm)
Planet X
25,000,000
36,000

12. Create a scale model of the solar system in SIZE And DISTANCE
MISSION
Create a scale model of the solar system in SIZE And DISTANCE

13. Scale sizes of the planets

14. Scale sizes of the planets

15. Scale sizes of the planets

16. Sun – Earth – Moon
THIS IS A COMPOSITE IMAGE

18. IBEX

19. Voyager 1 and 2 (launched in 1976)

20. Scale sizes of the Sun and Planets

21. Scale sizes of the Sun and other Stars

22. Scale sizes of the Sun and other Stars

23. Size Perspective of the
Video: Sizes of Stars
Size Perspective of the
planets and the stars

24. The Milky Way – Our home galaxy
There are about 100 billion stars in our galaxy. We can see about 4000 on a typical clear, dark night.

25. The distance light travels in 1 year
Light Year
Light travels at 3× 𝑚 𝑠
NOTE : 𝑉𝑒𝑙𝑜𝑐𝑖𝑡𝑦= 𝑑𝑖𝑠𝑡𝑎𝑛𝑐𝑒 𝑡𝑖𝑚𝑒
A light year is
The distance light travels in 1 year
This is equal to
9,460,730,472,580,800 meters (exactly)
≈ 5,878,625 million miles
≈ 63,241.1 astronomical units

26. Where are we in the Milky Way?
The Galaxy song:

28. We live in the Orion Arm

30. Local Cluster

31. Search for other planets in our galaxy

33. Follow the Hyperlink to Explore the order of matter from large objects to complex groups of objects

34. Where we are in the Universe?

39. Size Perspective of the
Doesn’t link
Size Perspective of the
planets and the stars