Chemistry
Earth and Space
Physics
Biology
General science knowledge
100

What is the molecular compound of water?

What is H2O

100

What type of rock occurs after magma cools?

What is igneous rock

100

Why don't we fly?

What is gravity

100

Which organs are used for breathing?

What is lungs

100

Hedgehog or Badger?

Badger

X10

200

What type of change occurs a candle burns?

What is physical and chemical change

200

What is the process that creates sedimentary rocks called?

What is compaction and cementation

200

Atoms are made of Protons, Neutrons, and what?

What is Electrons

200

What is the powerhouse of a cell?

What is mitochondria

200

How many elements are on the periodic table?

What is 118

300

Name a physical change?

Broken into smaller pieces, dissolves, mixed, or change in state

300

How are metamorphic rock formed 

What is heat and pressure

300

What is the force that slows anything in the air?

What is air resistance 

300

What is real name for the voice box?

What is Larynx

300

What is carbon's atomic number?

What is 6

400

What is the atomic symbol for gold?

What is Au

400

Name a rock with a hardness of 9?

What is Corundum 

400

What is potential energy?

What is stored energy

400

What chemical causes plants to be green?

What is chlorophyll

400

What is the name of the tallest tree?

Giant sequoia or Giant red wood

500

Balance N2 + H2 -> NH3?

What is N2 + 3H2 -> 2NH3

500

What did Alfred Wegener theorise?

What is continental drift

500

What is the first law of motion?

An object in motion remains in motion

500

How many stomachs does a cow have?

What is 4

500

How old is the oldest tree?

4,853 years old