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JLC Gr 3 Ch 3 Sci

JLC Gr 3 Chapter 3 Science

What do pets need ? -food, water, and a place to live
Wild animals need to do this to survive. -find their own food, water and place to live.
Animals need this to breathe. oxygen
Animals need to replace this because they lose it in their breath, sweat and urine. water
Animals need this to to live and grow food
Animals need this to protect themselves from the weather and from other animals. shelter
What do most vertebrates have? large brains and sharp senses.
The five major groups of vertebrates mammals, fish, reptiles, amphibians, birds
These are vertebrates that have hair or fur, have lungs, give birth to live young and feed milk to their young. Mammals
Name the vertebrates that have feathers and lay eggs birds
These are vertebrates that have dry skin covered with scales, have lungs, and most hatch from eggs. Reptiles
Vertebrates that have legs and moist skin as adults and most lay eggs in water. Amphibians
Vertebrates that take in oxygen through gills and spend their whole life in water Fish
Some mammals like polar bears have a layer of this to keep them warm. fat
Maria finds an animal she has never seen before. She wonders if it is a reptile or an amphibian. How might she tell the difference A reptile will have dry scaly skin. Amphibians have moist soft skin. Most amphibians live close to the water.
Explain the difference between how a mammal takes in oxygen and the way a fish takes in oxygen. A mammal takes in oxygen using their lungs. A fish uses their gills to filter the oxygen from the water.
Animals without a backbone. Invertebrates
Which group has more animals invertebrates or vertebrates? invertebrates
There are more types of these than all other animals put together. insects
How many body parts and how many legs does an insect have?They have no backbone but they have a hard outer body covering. 3 body parts & 6 legs
How many body parts and legs do spiders and ticks have? two body parts and eight legs. They have no backbone but they have a hard outer body covering 2 body parts & 8 legs
Insects and spiders both have these features. No backbone with hard outer body
Snails, clams, and squids have these features. Soft bodies and most have heads.
Some snails and clams have this to protect their soft body. hard shells
Some snails and clams have this to help them move. some type of foot
Worms do not have these features. shells, legs, or eyes.
How are invertebrates important to other living things? Invertebrates are important to other living things. Bees and butterflies move pollen from one flower to another. Many invertebrates are food for other animals. Worms help to improve the soil for plants. People also eat invertebrates and products from inve
Created by: jkm1123



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