1. “Surface Area & Absorption?
L7: Getting Started
“Surface Area & Absorption?

2. Calculating Surface Area
How would you calculate the surface area of the flat top of your desk?

3. How would you calculate the surface area of a cube?
Cube = (area of 1 side) x 6
=(4 x 4) x 6 = 96cm3

4. How would you calculate the surface area of a rectangular solid?
Rectangle = (area of short side x 2) + (area of long side x 4)
= (25 x 2) + (50 x 4) =
=250cm3

5. Practice:
6cm
= (6 x 6) x 6
= 216cm3
6cm
6cm

6. Practice:
= (5 x 5) x 6
= 150cm3
5cm

7. = (5 x 5 x 2) + (5 x 10 x 4) = (50) + (200) = 250cm3 Practice: 5cm 5cm

8. = (5 x 4 x 2) + (8 x 5 x 4) = (40) + (160) = 200cm3 Practice: 5cm 4cm

9. “Surface Area & Absorption”
L7: 7.1
“Surface Area & Absorption”

10. QUESTION:
How can you increase the surface area of a clay cube?

11. HYPOTHESIS:
I believe…because…

12. PROCEDURE:
(p )
1. Use a ruler to form the clay into a cube that measures 2 cm on each side.
2. Calculate the surface area of the cube and record it under your data section.

13. Increase the surface area of the cube:
You must still be able to calculate the surface area.
You may not add more clay.
You must not greatly increase the total volume occupied by the cube. (i.e. if the clay came in a small box, it must still fit into that box)

14. DATA: Calculate the new total surface area.
Draw how you set up your new piece of clay and record it in your data section.

15. DATA: Surface area of beginning cube=_____
Surface area of new shape=_____

16. VOCABULARY:
7.1 Surface Area

17. VOCABULARY:
7.1 Surface Area – the part of an object that makes contact with its environment

18. CONCLUSION: Be sure to write complete sentences.
Be sure to look back at the original question.
Be sure to include vocabulary words.