Density
What is density?
Density is the ratio of mass to volume of a substance or mass over volume
Are turtles amphibians like frogs
false/no
Pufferfish turn into a spikey balloon if they sense
danger
How many ocean layer are there
5
100 - 20 + 20 = ?
100
What are the units used to express density
any of the following g/mL, g/cm3, g/L, kg/L, kg/m3
If a turtle’s eggs is incubate at a low temperature, the hatchlings will be (____), and if incubate in high temperature, the hatchlings will be (____)
Low temp. Male
High temp. Female
Pufferfish trim their teeth by
by eating hard shell animals
Which ocean layer does photosynthesis occur
Epipelagic (sunlight zone)
100 - 72 + 2 = ?
30
If you have 1 kg of cotton and 1 kg of iron which one will sink
iron will sink
What animal(s) mentioned in the video shown this week is biological immortal
jellyfish
(____ ____) pufferfish has more toxin (hint: 2 words)
bright color
Photosynthesis is when _____
Organisms uses sunlight to turn CO2 into oxygen and energy
10 x 10 x 10 = ?
1000
What is the formula to find density
density = mass/volume
What is a fearsome turtle mentioned in the videos shown this week
Alligator Snapping Turtle
Baby puffer fish are (_____) and eat their own siblings (Hint: if the same species eat the same species what is it called)
cannibals
Name the 5 ocean layer in order and you must correctly name all 5 to get full points
(i.e. if you only named 4 you will not get the point)
sunlight zone (epipelagic), the twilight zone (mesopelagic), the midnight zone (bathypelagic), the abyssal zone (abyssopelagic) and the hadal zone (trenches)
(99/3 + 1)\2 = ?
17
Why do two objects have different densities if they are the same size?
because the objects may have different mass
What is the closest relative to turtle (ex: dinosaurs closest relative are birds like chicken)
crocodiles or birds
What is the toxin called in pufferfish
tetrodotoxins
Name one species for each of the ocean layer (must name one species for each layer to receive full points)
Sunlight Zone (Epipelagic Zone): Tuna, Dolphin, Jellyfish, sharks, stingrays, whales, seals and sea lions, shrimp
Twilight Zone (Mesopelagic Zone): Lanternfish, giant squid, lantern fish, rattail fish, hatchet fish, viperfish, mid-water jellyfish, crabs, lobster
Midnight Zone (Bathypelagic Zone): algae, anglerfish, mussels, vampire squid, eels and tripod fish
Abyssal Zone (Abyssopelagic Zone): basket stars (a species of sea star), Deep-Sea Cucumbers, Tripod Fish, Dumbo Octopus
Trenches (Hadal Zone): Giant Tubeworms, Cusk-eels
(100/2 + 50 + 10 )\2 = ?
55