What part of the plant makes food using sunlight?

Which blood vessels carry blood away from the heart?

What organ in the body helps filter waste from the blood?

Which body system helps us move and supports our body?

What is the main function of the lungs?

Which life process do animals perform to release energy from food?

What part of the digestive system absorbs most nutrients from food?

Which gas do humans exhale as waste during breathing?

Which group of animals lay eggs but also produce milk for their young?

What organ is responsible for pumping blood throughout the body?

What is the layer of gases surrounding Earth called?

Which star is at the center of our solar system?

What causes day and night on Earth?

Which planet is known as the "Red Planet"?

What is the main cause of the seasons on Earth?

Which instrument measures temperature?

What is the imaginary line that Earth spins on called?

What causes ocean tides on Earth?

Which planet has rings made of ice and rock?

What is the name of the galaxy that contains our solar system?

What is the basic unit of matter?

What state of matter takes the shape of its container?

What type of energy comes from moving objects?

What simple machine is used in a seesaw?

What form of energy allows us to see things?

Which material is a good conductor of electricity?

What happens to most metals when they are heated?

What kind of energy is released when wood burns?

Which force makes it difficult to slide heavy objects across the floor?