Science and Technology

Question 1

The chemical symbol for gold is Au. True or False?

Answer 1

True

Question 2

What is the powerhouse of the cell? A) Nucleus B) Mitochondria C) Ribosome D) Cytoplasm

Answer 2

B) Mitochondria

Question 3

Fill in the blank: The process by which plants make their own food is called __________.

Answer 3

photosynthesis

Question 4

Which planet is known as the Red Planet? A) Venus B) Mars C) Jupiter D) Saturn

Answer 4

B) Mars

Question 5

True or False: Water is made up of two hydrogen atoms and one oxygen atom.

Answer 5

True

Question 6

What is the speed of light in a vacuum? A) 300,000 km/s B) 150,000 km/s C) 1,000 km/s D) 3,000 km/s

Answer 6

A) 300,000 km/s

Question 7

Fill in the blank: The smallest unit of life is the __________.

Answer 7

cell

Question 8

True or False: DNA stands for Deoxyribonucleic Acid.

Answer 8

True

Question 9

Which gas do plants absorb from the atmosphere? A) Oxygen B) Nitrogen C) Carbon Dioxide D) Hydrogen

Answer 9

C) Carbon Dioxide

Question 10

Fill in the blank: The main organ of the circulatory system is the __________.

Answer 10

heart

Question 11

What is the most abundant gas in the Earth’s atmosphere? A) Oxygen B) Nitrogen C) Carbon Dioxide D) Argon

Answer 11

B) Nitrogen

Question 12

True or False: An atom consists of protons, neutrons, and electrons.

Answer 12

True

Question 13

Which scientist is known for the theory of relativity? A) Isaac Newton B) Albert Einstein C) Galileo Galilei D) Stephen Hawking

Answer 13

B) Albert Einstein

Question 14

Fill in the blank: The study of living organisms is called __________.

Answer 14

biology

Question 15

True or False: The Earth revolves around the Sun in an elliptical shape.

Answer 15

True

Question 16

What is the main component of the human brain? A) Water B) Fat C) Protein D) Carbohydrates

Answer 16

A) Water

Question 17

Fill in the blank: The force that keeps us on the ground is called __________.

Answer 17

gravity

Question 18

Which of the following is a renewable energy source? A) Coal B) Natural Gas C) Solar Power D) Oil

Answer 18

C) Solar Power

Question 19

True or False: The pH scale measures the acidity or alkalinity of a solution.

Answer 19

True

Question 20

What is the chemical formula for table salt? A) NaCl B) KCl C) CaCl2 D) MgCl2

Answer 20

A) NaCl

Question 21

Fill in the blank: __________ is the central processing unit of the computer.

Answer 21

CPU

Question 22

True or False: The Hubble Space Telescope is located on the Moon.

Answer 22

False

Question 23

Which element has the atomic number 1? A) Helium B) Hydrogen C) Lithium D) Beryllium

Answer 23

B) Hydrogen

Question 24

Fill in the blank: The branch of science that deals with the study of matter and its changes is called __________.

Answer 24

chemistry

Question 25

True or False: A virus is considered a living organism.

Answer 25

False

Question 26

What type of electromagnetic radiation has the longest wavelength? A) Gamma rays B) X-rays C) Ultraviolet rays D) Radio waves

Answer 26

D) Radio waves

Question 27

Fill in the blank: The device used to measure temperature is called a __________.

Answer 27

thermometer

Question 28

True or False: The human body has four lungs.

Answer 28

False

Question 29

Which of the following is NOT a type of renewable energy? A) Wind B) Solar C) Natural Gas D) Hydro

Answer 29

C) Natural Gas

Question 30

Fill in the blank: The scientific study of the universe beyond the Earth’s atmosphere is called __________.

Answer 30

astronomy