1. The document provides questions about the differences between benthos and plankton, the definition of nekton, which of the Atlantic ocean, Colorado river or polar ice cap would have salinity, and one difference between saltwater and freshwater other than salt. 2. It then provides information about a Discovery Education video called "Oceans blue with Philippe Cousteau: Atlantic". 3. The rest of the document contains chemistry questions about identifying elements based on their number of protons, neutrons, electrons and position on the periodic table. It asks the student to identify elements like boron, helium, calcium, silver, neon and elements in various groups and periods.

1. 2/28 A/B Day
NO LEQ TODAY!
1. What is the difference between a benthos and a
plankton?
2. What is a nekton?
3. Which of the following would you predict to have
salinity—the Atlantic ocean, the Colorado River, or a
polar ice cap?
4. Explain your answer to #3
5. What is one difference between saltwater and
freshwater—other than the salt?

2. Discovery Education:
Oceans blue with Philippe Cousteau: Atlantic

3. Let’s Review:

4. I have 27 protons.
What am I?

5. I have 2 electrons
and NO charge.
What am I?

6. I have 46 protons.
What am I?

7. I have 79 protons.
What am I?

8. I have 8 electrons
and NO charge.
What am I?

9. I am calcium (Ca).
How many
protons do I
have?

10. I am silver (Ag).
How many
neutrons do I
have?

11. I am neon (Ne).
How many
electrons do I
have?

12. What am I?
Protons: 5
Neutrons: 6 BORON!
Electrons: 5

13. How many valence electrons do I have?
Protons: 5
Neutrons: 6 3!
Electrons: 5

14. What am I??
Protons: 2
Neutrons: 2
HELIUM!
Electrons: 2

15. How many valence electrons do I have?
Protons: 2
Neutrons: 2
2!
Electrons: 2

16. FIND THAT ELEMENT!
GROUP 1, PERIOD 1 =

17. FIND THAT ELEMENT!
GROUP 6, PERIOD 7 =

18. FIND THAT ELEMENT!
GROUP 2, PERIOD 5 =

19. FIND THAT ELEMENT!
GROUP 9, PERIOD 4 =

20. FIND THAT ELEMENT!
GROUP 17, PERIOD 3 =

21. FIND THAT ELEMENT!
GROUP 11, PERIOD 4 =

22. GROUP 17
HALOGENS!

23. GROUP 18
NOBLE GASES!

24. Elements in the same
_group/period_ have
similar characteristics!