MATHS
SCIENCE
HISTORY
200

Solve the equation: 2x + 5 = 13

x = 4

200

What is the smallest unit of matter?

Atom

200

Which ancient civilization built the Great Pyramids of Giza?

Ancient Egyptians

400

If a triangle has two angles measuring 40 degrees and 80 degrees, what is the measure of the third angle?

60 degrees

400

What is the unit of measurement for electric current?

Ampere (A)

400

Which famous explorer is credited with discovering America?

Christopher Columbus

600

How many sides does a hexagon have?

6

600

What is the formula for calculating density?

Mass / Volume

600

Who was the President of the United States during the Civil War?

Abraham Lincoln

800

If the ratio of boys to girls in a class is 3:5 and there are 32 students in total, how many girls are there?

20 girls

800

What is the largest organ in the human body by surface area?

The liver

800

Who is known as the "Father of the American Revolution"?

Samuel Adams

1000

Calculate the area of a circle with a radius of 5 centimeters. (Use π = 3.14)

78.5 square centimeters

1000

What is the main component of Earth's atmosphere?

Nitrogen (approximately 78%)

1000

What was the name of the peace treaty that ended the First World War?

Treaty of Versailles