Mass
What is mass?
The amount of matter or particles in an object
What is weight?
The downwards force exerted on an object due to gravity
What is volume?
The amount of space something takes up
What is density?
The ratio of Mass and volume in an object (how much Mass is packed into a given amount of space)
What is displacement?
The act of an object or substance taking the place of something else, usually water.
Name 3 units of mass
g, kg, mg, pounds, tonnes, etc.
Because the Moon's gravity is only about 1/6th of Earth's, how much would a 120 pound Grade 8 student weigh on the surface of the Moon?
20 pounds
Canada produces roughly 75% of the world's total volume of maple syrup. Which province is responsible for almost all of it?
Quebec
You can easily float in the Dead Sea while reading a book because the water is extremely dense. What dissolved household item makes it so dense?
Salt
According to legend, the ancient Greek mathematician Archimedes discovered the principle of water displacement while stepping into what household object?
Bathtub
The Sun is so massive that it accounts for about 99.8% of all the mass in our entire solar system. Which gas giant planet holds most of the remaining 0.2%?
Jupiter
The heaviest coin ever minted in human history was made in Australia out of solid gold. It weighs 1,000 kilograms. What iconic Australian animal is stamped on the back of it?
Kangaroo
To hold the immense volume of an official Olympic swimming pool, you need approximately how many liters of water—25,000L, 250,000L, or 2.5millionL?
2.5 million L
In 1963, a British accountant invented a famous bedroom lamp filled with two liquids of almost identical densities that move around when heated. What is this classic decorative lamp called?
Lava lamp
What is the name of the guy who thought of using displacement as a way to find volume of irregular objects? (guy with the cool name)
Archimedes
Even though a fluffy white cumulus cloud looks lightweight, its total mass is actually very dense with water drops. An average cloud has a mass in kilograms as how many full-grown elephants—10, 100, or 1000?
100 (500,000kg)
Name one way you can recreate the feeling of zero gravity while on Earth
Free falling, deep dives inside of an airplace, zero-buoyancy water, etc.
The Earth holds a total of 1.386 billion cubic kilometres of water. What percentage of this water is freshwater (opposed to saltwater)? (correct within 10%)
3%
If you drop an unopened can of Regular Coca-Cola and a can of Diet Coke into a bucket of water, one floats and one sinks. Which one floats and why?
Diet coke because it has no sugar, therefore Less mass therefore less density
Submarines dive and surface by displacing water using special tanks called ballast tanks. What common gas do they pump in to push the water out when they want to surface?
Compressed Air (Nitrogen/Oxygen)
For over 100 years, the exact definition of one kilogram of mass was a cylinder made of platinum kept inside a triple-locked vault in which European country?
France
Astronauts in the ISS experience "zero gravity" even though they are close enough to the surface of the earth to feel the full effects of the Earth's gravitational pull. Why do they feel weightless?
They are constantly "falling" towards the earth due to the ISS's orbit path
The world record for the largest volume fruit ever grown goes to an American farmer who grew a pumpkin that weighed over 1,200 kilograms. What U.S. state is famous for holding the annual World Championship Pumpkin Weigh-Off?
California
This planet in our solar system has a density so low (less than water) that if you found a bathtub big enough, the entire planet would float in it
Saturn
When a massive iceberg displaced millions of liters of ocean water, it famously struck and sank the titanic in this year. (within 10 years will be correct)
1912