Science Unit 2

There is a kind of flower that is only found on one hill in the world. A building company buys the hill and destroys all of the flowers except one. What do you predict will happen?

• The flower will die soon because it can't reproduce.

• The flower will make new seeds soon. Those seeds will grow into new flowers.

• The flower can't reproduce by itself. The species will be gone forever when the flower dies.

Tags

NGSS.HS-LS4-5

A scientist is learning how chimpanzees live in a group. She noticed they look for food together. They teach each other to use sticks as tools. She noticed that the chimpanzee mothers are also important to the group.

How does living in groups help chimpanzees survive?

• Chimpanzees work together to meet their needs.

• It is easier for scientists to study chimpanzees in a group.

• Chimpanzee mothers can leave their young when they go find food.

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Zebras live in herds. When they are all together, their stripes are confusing. This makes it difficult to see where each zebra is.

How could living in a herd help a zebra to survive?

• Predators are afraid of herds of zebras.

• Predator's will not know where to attack because of the zebra's stripes.

• Predators like to attack big herds of zebras.

Arianna makes a list about her new puppy.

1. can fetch a ball

2. sits on command

3. has white fur

4. has four legs

5. wears a blue collar

Which traits did the puppy inherit from its parents?

• sits on command and has four legs

• white fur and wears a blue collar

• four legs and white fur

Tags

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Jamal's cat had kittens. Each kitten has different patterns and colors of fur.

Which answer best explains why these kittens have different patterns and colors of fur?

• The kittens eat different food.

• The kittens got different traits from their parents.

• The kittens have different mothers.

Tags

NGSS.MS-LS3-2

• They eat pellets.

• They have long necks.

• They eat shrimp and algae.

Tags

NGSS.MS-LS1-5

• The color of the bushes' leaves depend on where they are planted.

• The heights of the bushes depend on where they are planted.

• The color of the bushes' flowers depend on where they are planted.

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• More female turtles hatch from cooler nests.

• The temperature of the nest determines whether turtle eggs are male or female.

• Sea turtle mothers control the temperature to make their eggs male or female.

Tags

NGSS.MS-LS1-5

• Cows that weigh more make more milk.

• Cows that eat more food make less milk.

• Cows that live in cooler temperatures make more milk.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

When scientists observe an organism over a period of time and notice differences, they refer to those differences as a __________ in species.

• variation

• similarity

• genes

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