Basic biology
This organ pumps blood throughout your body.
What is the heart?
This is the closest planet to the Sun.
What is Mercury?
This is the most abundant element in the universe.
What is hydrogen?
This scientist is known for his theory of relativity.
Who is Albert Einstein?
This organ is responsible for filtering waste from the blood.
What are the kidneys?
This is the largest organ in the human body.
What is the skin?
The Moon orbits around this planet.
What is Earth?
This liquid is essential for all known forms of life.
What is water?
This is the planet known as the "Red Planet."
What is Mars?
This organ is primarily responsible for breathing
What are the lungs?
This part of the plant absorbs water from the soil.
What are roots?
This planet is known for its red appearance.
What is Mars?
This is the chemical formula for water.
What is H2O?
This process helps plants convert sunlight into energy.
What is photosynthesis?
This system is responsible for breaking down food and absorbing nutrients.
What is the digestive system?
This system controls your body’s responses to stimuli.
What is the nervous system?
The Sun is primarily made of this gas.
What is hydrogen?
This gas is what humans exhale.
What is carbon dioxide?
This element is the primary component of the air we breathe.
What is nitrogen?
This type of blood vessel carries oxygenated blood away from the heart.
What are arteries?
This is the process by which plants make their own food using sunlight.
What is photosynthesis?
The asteroid belt lies between these two planets.
What are Mars and Jupiter?
This is the pH level of water.
What is 7?
This part of the cell is responsible for producing energy.
What are mitochondria?
This part of the eye controls the amount of light that enters.
What is the iris?