Chemistry
What is the chemical formula for table salt?
NaCl
What type of cell has a cell wall?
Plant cell
What is the formula for acceleration due to gravity?
9.8m/s^2
What is the hottest planet in the solar system?
Venus
What is optics the study of?
Light
How many valence electrons does carbon have?
4 valence electrons
What part of the cell makes proteins?
Ribosome
What happens when a positive charge meets a negative charge?
They attract!!
What are all planets in our solar system that have rings?
Uranus, Jupiter, Neptune, Saturn
How many hearts does an octopus have?
3 hearts
What is acidity measured in?
pH (potential of hydrogen)
What organ produces bile?
Liver
When light changes direction through a lens what is it called?
Refraction
In the next phase of the star cycle, our sun will expand and become what?
What are the two main substances that make up bronze?
Tin and copper
Who discovered the neutron?
James Chadwick
Who invented insulin for diabetes?
Sir Frederick G Banting
What is the specific heat capacity for water?
4.184 J/(g *C)
What is the speed of sound in space?
0 m/s; Sound cannot travel in space.
What is 0 degrees celsius in kelvins?
273.15
What type of reaction occurs when an acid reacts with a base, producing salt and water?
Neutralization
Heterozygous
What two things are conserved during an elastic collision?
Momentum and kinetic energy
What percentage of the milky way is made of hydrogen atoms?
74%
What is the chemical formula for ozone?
O3