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What is the center of an atom called?
Nucleus
What is the process by which plants make their own food?
Photosynthesis
What gas do humans need to breathe?
Oxygen
What is the largest planet in our solar system?
Jupiter
What is the solid form of water called?
Ice
What force pulls objects toward the Earth?
Gravity
What do bees collect from flowers to make honey?
Nectar
What is the boiling point of water in Celsius?
100
What organ pumps blood throughout the body?
Heart
What part of a plant absorbs water from the soil?
Roots
What type of energy comes from the Sun?
Solar energy
What do we call the changing of a caterpillar into a butterfly?
Metamorphosis
What is the main source of energy for the Earth?
The Sun
What layer of the Earth do we live on?
Crust
What is the name of the galaxy we live in?
Milky Way
What do we call animals that eat only plants?
Herbivores
