Chapter 8 (Georgia) Science Rev. 4th Grade

Whales are mammals.  Why does a whale surface?

• for fun
• for food
• for air
• to see

Which detail is NOT about instinctive behavior?

• Your yawn.
• Zebras live in herds.
• A weaverbird builds its nest.
• A kitten learns to hunt by watching its mother.

Which animal on this bar graph has the shortest migration route

• artic tern
• caribou
• sandpiper
• gray whale

Which of the following is NOT a cause of extinction?

• habitat loss
• climate change
• creation of a wildlife refuge
• competition from nonnative plants or animals

Notice the beak pictured here.  What is it an adaptation for?

• eating fruit
• eating leaves
• grinding seeds
• spearing fish

Why don't you see any ground squirrels in winter?

• They are migrating.
• They don't like the cold.
• They are hiding
• They are hibernating.

A rare fish lives in only one stream.  A dam is built, and all the rare fish die.  What is this an example of?

• adaptation
• extinction
• competition
• migration

What are cows' teeth adapted for?

• eating meat
• eating fruit
• chewing grass
• cracking seeds

Which is an example of camouflage?

• a spider building a web
• a lion's harp claws and teeth
• a lizard changing color to hide
• a woodchuck's dormant state during winter

Food, water, air, and shelter that an organism needs to survive can best be described as which of the following terms?

• instinct
• extinction
• adaptation
• basic needs