Case Study:
Captain Crusoe was stranded on a deserted island and to survive, he needed to obtain fresh water.
To simulate his situation, you will be provided with some materials, and you will need to produce
not more than 10 ml of fresh water.
e
ERA
200 ml sea water
Aluminum foil (30cm x 30cm)
Cotton gloves x 1 pair
A towel x 1
10g weights x 4
Some nails
500mL Beaker x 1
250mL Beaker x 1
Tripod x1
Bunsen burner x 1
Heat proof mat x 1
L

Of the groups of elements below, which are most likely to gain electrons to become anions? a. alkali metal b. boron group c. halogen d. transition metal

Which supports the idea that birds and butterflies both have wings but they do not have a common ancestor with wings? a. the wings are analogous structures that evolved differently and do not have a similar internal structure. b. the wings are homologous structures that evolved differently and do not have a similar internal structure. c. wings of birds are vestigial structures, but the wing structures of bats are not vestigial. d. wings of bats are vestigial structures, but the wing structures of birds are not vestigial

2. you__turn left on a red light if you are in the left-most lane of a one-way street, you're turning into the left-most lane of a one-way street, and no nearby sign prohibits the turn.