chemistry
What is the chemical formula for water?
H₂O
What is the largest planet in our solar system?
Jupiter
What is the process by which plants make their own food?
Photosynthesis
What is the boiling point of water in Celsius?
100°C
What element is necessary for respiration in humans and animals?
Oxygen (O₂)
Which planet is known as the "Red Planet"?
Mars
What is the study of living organisms called?
Biology
Who is known as the father of modern physics?
Albert Einstein
What is the most common gas in Earth's atmosphere?
Nitrogen (N₂)
What is the primary source of energy for Earth?
The Sun
What is the hardest part of a human’s body?
Tooth enamel
What is the smallest unit of matter?
An atom
What is the chemical symbol for gold?
Au
What is the force that pulls objects towards the center of the Earth?
Gravity
What is the longest bone in the human body?
The femur (thigh bone)
What is the name of the process by which liquid turns into gas?
Evaporation
What is the chemical symbol for sodium?
Na
Which planet is closest to the Sun?
Mercury
What is DNA?
DNA (Deoxyribonucleic Acid) is the molecule that carries genetic information in living organisms.
What is the largest organ in the human body?
The skin