Grade One - Life Science

Living things

Living things are alive! They grow, change, and need food, water, and air to live. Living things can also have babies or make more living things like themselves.

Non-living things

Non-living things are not alive. They don’t grow or change, and they don’t need food, water, or air. They also can’t make new things like themselves.

Plants are living things too! To grow strong and healthy, they need air, water, sunlight, nutrients (like plant food), and space. Just like people need food to grow, plants need nutrients to grow. Plants grow best in places where they can get everything they need!

Parts of a Plant

Plants cannot walk around to look for food. They get everything they need from the space where they grow.

Leaves are plant parts that use sunlight and air to make food. Plants utilize this food for their growth.

Root is the part of the plant that holds the plant in the ground. The roots also take water and nutrients from the soil.

The Stem holds the plant up. it can be thin or thick. A thick stem is called a trunk.

Differences in Plants

Plants come in all shapes and sizes. Some are big, some are small. Some grow tall, and some stay short. Even their leaves can look very different!
Some plants are safe to eat, and others can be harmful if you eat them, so always ask an adult first!

Did you know you eat different parts of plants?
• When you eat lettuce, you're eating the leaves.
• When you eat carrots or potatoes, you're eating the roots.
• When you chew sugarcane, you're eating the stem.
• When you eat strawberries, you're eating the fruit!

Plants are not just fun to look at, they help feed us too!

Flowers, Fruits and Seeds

A flower is the colorful part of the plant that later develops into a fruit with seeds.

Flowers are colorful so as to attract insects like bees, which are necessary for pollination.

A seed is the part of the plant that can be used to grow a new plant.

Most seeds are covered and protected by a fleshy part called the fruit.

People and animals eat the fruits of many plants.

New Words

A mammal is an animal with hair or fur. They can hop, walk, swim or fly.

A bird is an animal that has two legs, two wings and feathers. Many lays eggs and can fly. birds also have beaks for eating and carrying things to their nests.

A reptile is an animal that has dry skin covered with scales, e.g., snakes and turtles. Some reptiles have shells to keep them safe. Most reptiles lay eggs.

Amphibians are animals that live on land and in water. Most amphibians have smooth moist skin. Amphibians usually hatch eggs in water then they move to land to become adults. frogs are amphibians.

Fish are a group of animals that live under water. Most fish have scales. Fish have fins that help them swim. Fish also have gills that help them breathe.

Insects are animals that have three body parts and six legs. Most insects lay eggs. Ants and butterflies are both insects.

What Animals Need to Live

Animals are living things. Like people, they need food, water, air, and a safe place to live.

A shelter is a place where animals can live and be safe.

Animals have specialized body parts to help them get what they need to live. Some use their eyes and noses to find food. Eyes, ears, and noses also tell animals of danger. Legs, wings, and fins can help them get away from danger.

Animals need air to live. Fish use gills while other animals use lungs to get air.

How Animals Eat

Animals eat food to get the energy they need to live. Different animals eat different things.

A herbivore is an animal that only eats plants. Horses, cows and rabbits are all herbivores.

Herbivores have flat teeth to chew and grind plants.

A carnivore is an animal that only eats other animals. Carnivores have sharp claws and teeth to catch and rip other animals for food.

Tigers, lions, sharks and cheetahs are examples of carnivores.

Questions

Which one is a living thing? Bus or Cat

Which animal is a herbivore? Cow or Tiger

What part of the body helps a mammal to breath? Gills or Lungs

What do you need teeth for? Chewing food or Breathing

Grass is a plant. True or False?

Which one of the following animals is a herbivore? Sheep or Eagle

Which of the following animals is a carnivore? Zebra or Lion

Which animal lays eggs? Dog or Turkey

Human beings are mammals. True or False?

Plants need sunlight to grow. True or False

Cactus are living things. True or False

Which animal produces wool?