Third Grade Living Things

What are living things?

• Living things are organisms that can grow, reproduce, and respond to changes.

• Living things are unable to grow or reproduce

• Living things are made of rocks and minerals

• Living things are only found in outer space

Name three examples of living things.

• Rocks, water, air

• Animals, plants, humans

• Books, toys, furniture

• Cars, buildings, computers

What is the process of classification?

• Sorting rocks based on their colors

• Arranging toys by size

• Grouping living things based on their similarities and differences

• Categorizing books by their authors

Why is classification important in studying living things?

• To organize and understand the diversity of living things.

• To confuse students

• To waste time

• To make things more complicated

What is the difference between plants and animals?

• Animals are stationary and cannot move.

• Plants have a nervous system like animals.

• Animals can produce their own food through photosynthesis.

• Plants make their own food through photosynthesis.

How do scientists classify living things?

• Based on their favorite color

• Based on their characteristics and evolutionary relationships

• Based on their ability to fly

• Based on their taste in music

What are the characteristics of mammals?

• Have exoskeleton, lay eggs, have antennae, breathe through lungs

• Have scales, lay eggs, have a hard shell, cold-blooded

• Warm-blooded, have hair or fur, give birth to live young, nurse their offspring with milk

• Cold-blooded, have feathers, lay eggs, breathe through gills

What are the characteristics of birds?

• Birds have shells, lay eggs, have a long tail, and have the ability to hibernate.

• Birds have feathers, lay eggs, have beaks, and have the ability to fly.

• Birds have fur, lay eggs, have teeth, and have the ability to swim.

• Birds have scales, give birth to live young, have claws, and have the ability to climb trees.

Explain the difference between vertebrates and invertebrates.

• Vertebrates have a backbone or spinal column, while invertebrates do not.

• Vertebrates live in water, while invertebrates live on land.

• Vertebrates have wings, while invertebrates do not.

• Vertebrates are cold-blooded, while invertebrates are warm-blooded.