Educational worksheet on animal adaptations with interactive exercises and a grasshopper illustration.

Problem Overview:

The task involves filling in the blanks with appropriate words from the provided "Word Bank" to complete sentences about animal adaptations. The Word Bank includes the following words: scales, change, bubble, seeds, nuts, leaf, hollow, migrate.

Step-by-Step Solution:

#### 1. Birds have ______ bones that make their bodies light. This helps them fly.
- Key Concept: Birds have lightweight bones to facilitate flight.
- Correct Word: hollow
- Explanation: Bird bones are often hollow, which reduces their weight and makes flying easier.
- Answer: Birds have hollow bones that make their bodies light. This helps them fly.

#### 2. A reptile has ______ on its body. They keep the reptile from drying out.
- Key Concept: Reptiles have scales to protect their skin and prevent water loss.
- Correct Word: scales
- Explanation: Scales are a protective feature of reptiles that help retain moisture and protect their skin.
- Answer: A reptile has scales on its body. They keep the reptile from drying out.

#### 3. Squirrels store ______ by burying them or hiding them. When they can't find food, they eat what they have stored.
- Key Concept: Squirrels store food for later use, especially during winter.
- Correct Word: nuts
- Explanation: Squirrels are known to collect and bury nuts as a food source for times when food is scarce.
- Answer: Squirrels store nuts by burying them or hiding them. When they can't find food, they eat what they have stored.

#### 4. Monarch butterflies cannot live in cold temperatures. Each winter, they ______ to a warmer place.
- Key Concept: Monarch butterflies migrate to avoid cold climates.
- Correct Word: migrate
- Explanation: Monarch butterflies travel long distances (migrate) to warmer regions during winter.
- Answer: Monarch butterflies cannot live in cold temperatures. Each winter, they migrate to a warmer place.

#### 5. Seals that live in very cold places have a thick layer of ______. It keeps them warm.
- Key Concept: Seals in cold environments have blubber for insulation.
- Correct Word: blubber
- Explanation: Blubber is a thick layer of fat under the skin that provides insulation and helps seals stay warm in cold water.
- Answer: Seals that live in very cold places have a thick layer of blubber. It keeps them warm.

#### 6. Katydids are hard for their enemies to see. Many are green and ______ shaped.
- Key Concept: Katydids use camouflage to blend into their environment.
- Correct Word: leaf
- Explanation: Katydids often have a leaf-like shape and color to blend in with leaves and foliage, making them harder to spot by predators.
- Answer: Katydids are hard for their enemies to see. Many are green and leaf shaped.

#### 7. A chameleon's skin can ______ color. This helps the chameleon hide from its prey.
- Key Concept: Chameleons change their skin color for camouflage.
- Correct Word: change
- Explanation: Chameleons can change the color of their skin to match their surroundings, helping them blend in and avoid detection.
- Answer: A chameleon's skin can change color. This helps the chameleon hide from its prey.

#### 8. Kangaroos rats live in the desert where there is very little water. They get water from ______ they eat.
- Key Concept: Kangaroo rats extract water from their food.
- Correct Word: seeds
- Explanation: Kangaroo rats primarily eat seeds, which provide both nutrition and moisture, allowing them to survive in arid environments.
- Answer: Kangaroo rats live in the desert where there is very little water. They get water from seeds they eat.

Final Answers:

1. hollow
2. scales
3. nuts
4. migrate
5. blubber
6. leaf
7. change
8. seeds

Bonus Box:

The question asks, "What's the difference between a fly and a bird?" and directs us to circle the need that squirrels are meeting (food or water).

- Squirrels store nuts, which are a food source.
- Answer: Circle food.

Final Answer Box:

\[
\boxed{\text{hollow, scales, nuts, migrate, blubber, leaf, change, seeds}}
\]