Survival

Equipment that purifies water that has substances dissolved in it by using the heat of the Sun to evaporate water so that it may be cooled and collected.

• bow drill

• solar still

• hypothermia

• tinder

• resources

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

Easily combustible (lights on fire) material used to start a fire.

• tinder

• arid

• boreal

• lean-to

• resources

To carefully convserve a certain amount of food or water. It can also mean foods that have been prepared to last for long periods of time.

• bow drill

• solar still

• hypothermia

• ration

• resources

A simple rotational hand-operated tool of prehistoric origin. It could be used to generate friction to start a fire.

• bow drill

• solar still

• hypothermia

• ration

• resources

Tags

NGSS.MS-PS3-5

The leaves of both plants have different structures. What differences in the structure of the leaves of these plants likely help them survive in their environments?

• The pan-like shape of the giant water lily leaves help them catch rainwater. The slim shape of the mesquite leaves helps them avoid sunlight.

• The broad shape of the giant water lily leaves helps them stay on the water surface. The slim shape of the mesquite leaves helps them prevent water loss.

• The pan-like shape of the giant water lily leaves helps them attract small fish. The slim shape of the mesquite leaves helps them avoid herbivores.

• The broad shape of the giant water lily leaves helps them attract aquatic birds.The slim shape of the mesquite leaves helps them attract pollinators.

Answer explanation

Mesquite trees live in hot climates where the sun is very intense. The small leaves help them prevent water loss. The broad shape of the water lily leaf helps keep the leaf on top of the water so the plant can absorb sunlight better.

• A

• B

• C

• D

Changes in physical structure, function, or behavior that allow an organism to survive

• Adaptation

• Mutation

• Camouflage

• Interdependence

Tags

NGSS.MS-LS4-4

• The pan-like shape of the giant water lily leaves helps them catch rainwater. The slim shape of the mesquite leaves helps them avoid sunlight.

• The broad shape of the giant water lily leaves helps them stay on the water surface. The slim shape of the mesquite leaves helps them prevent water loss.

• The pan-like shape of the giant water lily leaves helps them attract small fish. The slim shape of the mesquite leaves helps them avoid herbivores.

• The broad shape of the giant water lily leaves helps them attract aquatic birds. The slim shape of the mesquite leaves helps them attract pollinators

Tags

NGSS.MS-LS2-1

The prickly pear cactus is Texas' state plant. This green plant has bright yellow flowers and purple fruit. It has waxy, oval-shaped pads and sharp spines. Which trait helps the prickly pear cactus conserve water?

• Waxy pads

• Yellow flowers

• Purple fruit

• Green color

Tags

NGSS.MS-LS2-1

Which statement does NOT describe how the body structures of these animals help them escape predators?

• Paws with long claws on flexible toes to help them climb trees.

• Sharp teeth allow them to catch prey on land or in water.

• Long tails allow them to balance on branches in trees.

• Good eyesight helps them to see at night.

Answer explanation

Since the animals use sharp teeth to catch prey, it wouldn't help them avoid predators. Climbing trees is a good way to avoid predators and having good eyesight would help them avoid predators.