OpenStem

@openstem · Joined Jul 2026

7420 public items8 groups

Note~198 words · 1 min

Plants and Animals Plants and animals are both living things. But they are not exactly the same. Let's look at how they are alike, and how they are different. How They Are Alike How They Are Different Plants and Animals at a Glance So plant

Biology

Plants and Animals

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Note~187 words · 1 min

Bugs and Minibeasts Minibeasts are small animals we find in gardens, parks, and under logs. Insects are one kind of minibeast, but not the only kind. What makes an insect an insect? Minibeasts that are not insects Where to find minibeasts M

Biology

Biology · L1 · Bugs and Minibeasts

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Note~403 words · 2 min

Your Five Senses: How Your Body Notices the World Your body has five sense organs. Each one notices something different about the world around you, and each one sends a message to your brain. Your Eyes Your eyes catch light. Light enters th

Biology

Biology · L1 · Your Five Senses: How Your Body Notices the World

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Note~338 words · 2 min

From Egg to Chick: How a Bird Develops A chicken starts life as a single egg. Inside that egg, a lot of growing happens before a chick is ready to hatch. What's Inside an Egg An egg looks simple on the outside, but it has everything a growi

Biology

Biology · L1 · From Egg to Chick: How a Bird Develops

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Note~348 words · 2 min

How Insects and Small Creatures Survive Winter Winter is hard for small creatures. It is cold, and there are not many plants or flowers to eat. Insects and other small creatures have found clever ways to make it through until spring. Flying

Biology

Biology · L1 · How Insects and Small Creatures Survive Winter

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Note~307 words · 2 min

Born Alive or Hatched From an Egg? Every animal starts life in one of two ways. Some babies grow inside their mother and are born alive. Other babies grow inside an egg outside their mother's body, and then hatch out. Born Alive When an ani

Biology

Biology · L1 · Born Alive or Hatched From an Egg?

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Note~360 words · 2 min

Bird Beaks and Feet: Shaped for the Job Look closely at a bird and you will notice something amazing: its beak and feet are shaped just right for the way it lives. A bird's beak shape tells you a lot about what it eats, and its feet shape t

Biology

Biology · L1 · Bird Beaks and Feet: Shaped for the Job

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Note~269 words · 1 min

Animal Camouflage: Hiding in Plain Sight Camouflage is when an animal's color, pattern, or shape helps it hide. Camouflage helps animals stay safe from predators, and it helps hunters sneak up on their prey. Blending In Blending in means an

Biology

Biology · L1 · Animal Camouflage: Hiding in Plain Sight

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Note~301 words · 2 min

Baby Teeth and Adult Teeth Humans grow two whole sets of teeth in a lifetime. The first set is called baby teeth. The second set is called adult teeth, and it has to last the rest of your life. Your First Teeth Baby teeth start growing in w

Biology

Baby Teeth and Adult Teeth

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Note~291 words · 1 min

Bees, Butterflies, and Flowers: Helping Each Other Flowers cannot walk or fly, but they still need help moving pollen from one flower to another. Bees and butterflies give them that help, without even meaning to. Why Bees and Butterflies Vi

Biology

Biology · L1 · Bees, Butterflies, and Flowers: Helping Each Other

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Note~414 words · 2 min

How Animal Parents Care for Their Young Animal parents do not all take care of their babies in the same way. Some feed their babies milk. Some bring up food from their stomach. Some leave their eggs and never come back. And some spend a lon

Biology

Biology · L1 · How Animal Parents Care for Their Young

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Note~268 words · 1 min

Why Whales and Dolphins Must Surface to Breathe Whales and dolphins live in the ocean, but they are not fish. They are mammals, just like dogs, cats, and people. That means they have lungs, not gills, so they must breathe air. Lungs, Not Gi

Biology

Why Whales and Dolphins Must Surface to Breathe

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Note~282 words · 1 min

Animal Homes: Nests, Burrows, Shells, and Webs Many animals build or carry a special home to keep themselves and their babies safe. Each kind of home is made from different materials and used in its own way. Homes Animals Build Homes Animal

Biology

Animal Homes: Nests, Burrows, Shells, and Webs

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Note~226 words · 1 min

How New Plants Grow Without Seeds Most plants grow from seeds. But some plants have other clever ways to make brand-new plants, without using a seed at all. Runners A runner is a long stem that grows out sideways along the ground. Strawberr

Biology

Biology · L1 · How New Plants Grow Without Seeds

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Note~247 words · 1 min

Animal Sounds in Nature Animals make many different sounds. If you close your eyes and just listen, you can often guess which animal is nearby by the sound it makes. Matching Sounds to Animals Here are some common animal sounds and the anim

Biology

Biology · L1 · Animal Sounds in Nature

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Note~263 words · 1 min

How Long Do Plants Live? Not every plant lives for the same amount of time. Some plants live for just one growing season. Some live for two years. Some live for many, many years, coming back again and again. This is a different question fro

Biology

Annual and Perennial Plants: How Long Do Plants Live?

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Note~311 words · 2 min

Plant Parts We Eat Plants have different parts, and each part does a special job. Roots soak up water. Stems carry water up. Leaves make food from sunlight. Flowers turn into fruit, and fruit holds the seeds. When we eat vegetables and frui

Biology

Biology · L1 · Plant Parts We Eat

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Note~186 words · 1 min

Warm-Blooded and Cold-Blooded Animals Every animal needs to control its body temperature to stay alive. But different animal groups do this in very different ways. Making Your Own Heat Mammals and birds are warm-blooded. Their bodies burn e

Biology

Warm-Blooded and Cold-Blooded Animals

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Note~290 words · 1 min

Animals That Live in Groups Many animals do not live alone. They live together in groups. Each kind of group has its own special name! Special Names for Animal Groups Here are some group names you might hear at the zoo, on a farm, or in a n

Biology

Animals That Live in Groups

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Note~235 words · 1 min

Plants Grow Toward the Light Have you ever seen a plant on a windowsill leaning toward the window? Plants need light to make their own food, so they grow toward the brightest light they can find. A Simple Window Experiment You can see this

Biology

Biology · L1 · Plants Grow Toward the Light

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Note~273 words · 1 min

How Ants Work Together An ant colony is like a busy team. Every ant has its own job, and all the jobs help the whole colony live and grow. The Queen Ant The queen ant is the only ant in the colony that lays eggs. She stays safe inside the n

Biology

Biology · L1 · How Ants Work Together

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Note~124 words · 1 min

Photosynthesis: A Plant's Kitchen Plants make their own food through a process called photosynthesis. The word just means 'putting together with light'. A plant takes in three things: water (from the soil through its roots), carbon dioxide

Biology

Biology · L2 · How Plants Make Food

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Note~146 words · 1 min

Cell Organelles at a Glance Cells are built from smaller working parts called organelles. Some organelles, like the nucleus and mitochondria, are shared by plant and animal cells. Others, like the cell wall and chloroplasts, are found only

Biology

Biology · L2 · Cell Organelles at a Glance

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Note~235 words · 1 min

The Digestive System: Breaking Down Food The digestive system is a long path through your body that turns the food you eat into nutrients your cells can use for energy, growth, and repair. Along the way, several organs each do a specific jo

Biology

Biology · L2 · The Digestive System

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Note~220 words · 1 min

The Circulatory System: Your Body's Delivery Service Every cell in your body needs oxygen and nutrients to survive. The circulatory system delivers them by pumping blood through a network of tubes called blood vessels. At the center of the

Biology

Biology · L2 · The Circulatory System

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Note~261 words · 1 min

The Respiratory System: Breathing In and Out Every cell in your body needs a steady supply of oxygen, a gas that cells use to release energy from food. Your respiratory system is the set of organs that bring oxygen in and push carbon dioxid

Biology

Biology · L2 · The Respiratory System

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Note~259 words · 1 min

Two Systems, One Team Your skeleton and your muscles never work alone — together they form the musculoskeletal system. Bones give your body a rigid frame and act as levers. Muscles attach to those bones with tendons and supply the pulling f

Biology

Biology · L2 · Your Bones and Muscles Team Up

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Note~242 words · 1 min

The Body's Messaging System Your nervous system is like a messaging network. It is made up of the brain, the spinal cord, and nerves that reach out to every part of your body. The brain is the control centre. Its main part, the cerebrum, ha

Biology

Biology · L2 · The Brain and Nerves

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Note~175 words · 1 min

Traits and Heredity at a Glance A trait is a feature of a living thing, like eye colour or a skill. Inherited traits are passed down from parents through their genes and are present from birth — practice can't change them. Learned traits, a

Biology

Biology · L2 · Traits and Heredity at a Glance

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Note~148 words · 1 min

The Five Kingdoms at a Glance Scientists classify — or sort — every living thing on Earth into one of five kingdoms. Organisms end up in the same kingdom because they share important features, such as how they get their food or what their c

Biology

Biology · L2 · The Five Kingdoms at a Glance

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