Biology
Chemistry
Physics and optics
Miscellaneous
100
Largest artery in the human body
The aorta. The largest artery that carries oxygen-rich blood from the left ventricle of the heart to other parts of the body.
100
Which elements are diatomic particles?
Hydrogen, Oxygen, Fluorine, Bromine, Iodine, Nitrogen, Chlorine
100
What does phosphorescence mean
Objects that absorb light and releases energy slowly
100
What is the tallest building in the world
Burj Khalifa which stands 828m high
200
Largest organ in the human body
Skin. Adults carry some 8 pounds (3.6 kilograms) and 22 square feet (2 square meters) of it
200
What is the chemical formula for Scandium Oxide
Sc2O3
200
What are the 2 types of reflection
Specular reflection and Diffuse reflection
Specular reflection - reflection off a smooth surface
Diffuse reflection - reflection off an irregular or dull surface
200
What is the name of the bridge in San Fransico that has a length of 2,737 m
The Golden Gate bridge
Length: 2,737 m and Height: 227 m
300
Which body system contains the Pineal Gland, Thyroid Gland, Adrenal Gland, and Pancreas
The Endocrine system
300
Which substances control the rates of chemical reactions
Catalysts. Catalysts are substances that control the rates of chemical reactions.
300
What is bioluminescence
The production of light in living organisms as a result of a chemical reaction with little or no heat produced
300
How many countries took part in a project that took 10 years to build a space station.
15 countries
15 countries
The International Space Station (ISS) took 10 years and more than 30 missions to assemble. It is the result of unprecedented scientific and engineering collaboration among five space agencies representing 15 countries.
400
What are the 3 parts of the small intestine
Duodenum, Jejunum, and Ileum. The first part, called the duodenum, connects to the stomach. The middle part is the jejunum. The third part, called the ileum, attaches to the colon.
400
What is the balanced chemical reaction of
Magnesium with Oxygen
2Mg(s) + O2 = 2MgO
there are 2 oxygen atoms because it's a diatomic element
400
What is Snell's Law
n1sinθ1 = n2sinθ2
400
What animal is depicted in the photo?
Pangolin.
500
What is the layer of wax on the surface of leaves called?
The stomata
500
An Arrhenius acid is a substance that ...
Donates a H+
500
What is the magnification equation
M = (hi)/(ho) = -(di)/(do)
Where hi and ho are the heights of the image and object respectively
di and do is the distance of the image and object respectively
500
What animal is depicted in the photo
An ocean sunfish