Astronomy
Biology
Physics
Chemistry
Interesting facts
100

What is the largest planet in our solar system?

Jupiter

100

What is the basic unit of life?

Cell

100

What is the force that pulls objects toward the center of the Earth?

Gravity

100

What is the atomic number of helium?

2

100

What is the hardest natural substance on Earth?

Diamond

200

What is the name of our galaxy?

Milky way

200

What type of animal is a frog?

Amphibian

200

What law states that for every action, there is an equal and opposite reaction?

Newton's third law of motion

200

What is the lightest element in the periodic table?

Hydrogen

200

Which planet has the most moons?

Saturn

300

What is the name of the molecule that carries genetic information in living organisms?

DNA

300

What is the unit of Weight in the International System of Units (SI)?

Newton

300

What is the chemical formula for table salt?

NaCl

300

What is the only bird that can fly backward?

Hummingbird

400

What is the name of the boundary around a black hole beyond which nothing can escape?

Event horizon

400

What is the most abundant gas in Earth's atmosphere?

Nitrogen

400

What type of energy is possessed by an object due to its motion?

Kinetic energy

400

What is the common name for dihydrogen monoxide?

Water

400

What is the largest organ in the human body by weight?

Liver

500

What phenomenon occurs when the Moon passes directly between the Earth and the Sun?

Solar eclipse

500

What type of blood cells are responsible for fighting infections?

White blood cells

500

What is the term for the bending of light as it passes from one medium to another?

Refraction

500

What is the pH value of a neutral solution?

7

500

What is the deepest part of the world's oceans?

Mariana trench