Hypothesis- I think that the best water solution would be 50 p.p.t because it has the highest concentration of salt in it, maybe that's what the shrimp need in order for them to increase.

Materials- salt solutions ( different concentration ), Brine Shrimp Eggs, labels, glass vials

Steps-1.Assemble into groups

2.Assign each person with a different concentration

3.On a piece of tape label: -concentration

-period

-your initials

4.Fill tube with salt solution

5.Add eggs

6.Cover, set aside

7.Observe, count number of eggs, and number of shrimp

Vials Salt

concentration # of eggs

(day 1) Eggs hatched # of eggs

(day 2) Eggs

hatched

1. 0 4 0 same same
2. 10 20 2 same same
3. 25 50 6 same same
4. 35 12.5 4 same same
5. 50 13.4 1 same same
1. What does "parts per thousand mean" mean ?

This means how much salt is in the water concentration

2. What is the best concentration to hatch brine shrimp eggs "

In my group the best water concentration was the 25 p.p.t, it hatched 6 eggs.

3. Why do we have to wait one day to begin counting "

We have to wait one day because we need the eggs to adapt to the water and the salt concentration in order for them to hatch