This flightless bird lives in Antarctica and wears a "tuxedo."
What is a penguin?
Plants need sunlight, water, and this gas from the air to make their own food.
What is carbon dioxide?
This is the star at the center of our solar system.
What is the Sun?
This organ pumps blood throughout your body.
What is the heart?
This is what happens to water when it is heated to 100 degrees Celsius (212°F).
What is boiling?
This process is when an animal sleeps through the entire winter.
What is hibernation?
This is the process where plants make their own food using sunlight.
What is photosynthesis?
This is the force that pulls objects toward the center of the Earth.
What is gravity?
These are the five senses: sight, hearing, smell, taste, and this one.
What is touch?
These are the three states of matter: solid, liquid, and this one.
What is gas?
This is the name for a frog at the stage of its life when it has a tail and lives in water.
What is a tadpole?
This part of the plant grows underground and absorbs water and minerals.
What is the root?
This is the name for water falling from the sky in its solid, crystalline form.
What is snow?
These 206 parts make up the framework that supports your body.
What are bones?
This is the tool scientists use to see very small things, like cells or tiny bugs.
What is a microscope?
This is the largest big cat in the world, known for its orange fur and black stripes.
What is a tiger?
This is the name for the tiny powder made by flowers that helps them make seeds.
What is pollen?
This is the name for a large, slow-moving mass of ice found in cold regions or on high mountains.
What is a glacier?
This is the body system that breaks down the food you eat.
What is the digestive system?
This is the name for the tiny building blocks that make up everything around us.
What are atoms or molecules?
This is the term for an animal that only eats plants, like a panda or a giraffe.
What is a herbivore?
This is the green pigment in plants that captures energy from sunlight.
What is chlorophyll?
This is the imaginary line that runs around the middle of Earth, dividing it into Northern and Southern Hemispheres.
What is the equator?
This is the largest organ of the human body, which covers and protects everything inside.
What is the skin?
This is the name for a large group of water droplets floating high in the sky.
What is a cloud?