Chemistry
What is an atom?
The smallest unit of matter
What is energy?
The ability to do work
What force pulls objects toward the centre of Earth?
Gravity
What is the smallest unit of life?
Cell
How many cards in a deck of cards?
52
What are the three states of matter?
solid, liquid and gas
What do we call the energy of movement?
Kinetic energy
What is the largest organ in the human body?
Skin
What is the function of the mitochondria in a cell?
Produce energy
If you added up all the numbers on a dice, what is the answer?
21
What is the state change called when a gas changes to a liquid?
Condensation
When energy is changed from one type of energy into another
What is the name of the supercontinent that existed before the continents separated into their current positions?
Pangaea
Which system in the human body is responsible for transporting oxygen and nutrients to cells?
Circulatory system
What is the most abundant gas in Earth's atmosphere?
Nitrogen
Give 3 observations that indicate a chemical change has occurred.
change in colour, release of light, release of gas, smell, change in temp., etc
Convert 830 kJ of energy to J
830,000 J
What is the most abundant element in the universe?
Hydrogen
To allow us to inhale, what happens to the air pressure inside the lungs?
Decreases
What disease caused the Black Death, which killed millions in medieval Europe?
Bubonic plague
Name the process that occurs when particles gradually mix until the concentration is even
Diffusion
What are 3 types of potential energy?
Gravitational, chemical, elastic, nuclear
What is the most common blood type worldwide?
Name 5 different systems of the human body
digestive, reproductive, circulatory, respiratory, skeletal, nervous, lymphatic, integumentary, excretory, muscular
What Australian animal is the twenty cent coin?
Platypus