periodic table
physics
chemistry
biology
random
100

the eightieth element. 

mercury

100

Why does water make a shirt darker?

Getting a spot wet on your shirt does not make that spot permanently darker or intrinsically different. Water just makes fabric appear darker by making the fabric more transparent, allowing you to see darker objects behind the fabric.

100

Are two atoms of the same element identical?

No. Two atoms of the same chemical element are typically not identical.

100

Can I turn my cat into a diamond?

Yes. It is scientifically possible to turn your cat into a diamond. 

100

How many bones are in the human body?

206

200

Who Invented the Periodic Table?

Dmitri Mendeleev


200

Can radio antennas emit visible light?

yes

200

What makes ice slippery.

ice is actually slippery it is a thin layer of water on top of it that is slippery.

200

How can we unlock the 90% of our brain that we never use?

trick question we use all of our brain.

200

What is the hardest natural substance on Earth?

diamond

300

what number is barium in the periodic table

56

300

Why will a delivery truck filled with birds sitting on its floor be heavier than a truck with the same birds flying around inside.

the delivery truck will weigh the same.

300

What is the atomic number of uranium?


92.

300

How much water can a camel store in its hump?

Camels do not store water in their humps. Instead, camels use the humps to store energy-rich fat deposits

300

The skeletal framework of which animal has been used in household chores for centuries but has now been largely replaced by human-made substitutes?


sponge

400

number in the periodic table for nobelium

102

400

what elements can be able to make gold.

platinum and mercury.

400

One of the essential minerals in the human body is salt. How much salt (NaCl) is in the average adult human body?

250 grams

400

Are there any parts of the human body that get oxygen directly from the air and not from the blood?

Upper-layer skin cells and the cells in the front surface of the eyes get a significant amount of oxygen

400

what was DNA originally called?

nuclein.

500

What is electron affinity.

The amount of energy released when an electron is added to a neutral atom to form an anion(also called affinity)

500

Does time go faster at the top of a building compared to the bottom?

the time does go faster at the top of a building.

500

What element did Charles Hatchett discover?


Niobium.

500

what colors are your blood. 

blue red and green (green is when you go deep underwater)

M
e
n
u