Biology
Astronomy
Chemistry
Anatomy
Physics
100

What pigment gives plants their green color?

Chlorophyll.

100

What is the term for a group of stars that form a recognizable pattern in the night sky?

 Answer: Constellation.

100

What is the chemical formula for table salt?

Answer: NaCl (sodium chloride).

100

What is the largest organ in the human body?

Answer: The skin.

100

What is the SI unit of measurement for electric current?

Answer: Ampere (A).

200

Which blood cells are responsible for fighting infections? 


 White blood cells (leukocytes).

200

What is the name of the closest galaxy to the Milky Way? 

Answer: The Andromeda Galaxy.

200

What is the name of the process where a solid changes directly into a gas without passing through the liquid phase?

 Answer: Sublimation.

200

What is the name of the largest artery in the human body?

Answer: Aorta.

200

A car travels at a constant speed of 60 km/h for 2 hours. How far does it travel?

120 km.

300

What is the name of the system responsible for producing hormones that regulate various bodily functions?

Answer: The endocrine system.

300

What is the name of the spacecraft that was the first to successfully land on Mars?

 Answer: Viking 1.

300

Convert 500 Kelvin to Celsius.

C≈226.85

300

What is the name of the membrane that lines the walls of the thoracic cavity and covers the lungs?

Answer: Pleura.

300

A car accelerates uniformly from rest to a speed of 20 m/s in 5 seconds. What is its acceleration?

4m/s2  

400

What is the name of the phenomenon where an organism can regrow lost body parts? Answer:

Regeneration.

400

What is the name of the region beyond the orbit of Neptune where small icy bodies are found?

Answer: The Kuiper Belt.

400

What is the chemical symbol for element Tin?

Sn

400

What is the name of the gland responsible for regulating calcium levels in the blood and involved in bone metabolism?

Answer: Parathyroid gland.

400

An object is dropped from rest. If it falls freely for 2 seconds, what is its final velocity? (Assuming no air resistance, and the acceleration due to gravity is 9.8 m/s2

vf=19.6m/s

500

What is the name of the structure within the nucleus that is responsible for producing ribosomal RNA (rRNA) and assembling ribosomes?

Answer: Nucleolus.

500

What is the name of the telescope launched into orbit by NASA in 1990 that has provided some of the most detailed images of distant galaxies and nebulae?

Answer: The Hubble Space Telescope.

500

Convert 100°C to Fahrenheit.

212°F.

500

What is the name of the area in the brain responsible for regulating vital functions such as breathing, heartbeat, and blood pressure?

 Answer: The medulla oblongata.

500

A 5000 kg truck traveling at 20 m/s collides with a stationary car and comes to a stop in 5 seconds. What is the magnitude of the average force exerted on the truck?

2000N