Chemistry
What is an atom?
The smallest unit of matter
What is energy?
The ability to do work
The ability to make things move
What are cells made of?
Organelles
How many cards in a deck of cards?
52
How many continents are there on Earth?
7
What are the three states of matter?
solid, liquid and gas
What are the 2 main forms of energy?
Potential and Kinetic
Give one advantage for sexual reproduction
genetic diversity
If you added up all the numbers on a dice, what is the answer?
21
5, 10, 15, ___, 25
What is missing?
20
What is the state change called when a liquid changes to a solid?
Freezing
What are 2 types of potential energy?
Gravitational, chemical, elastic, nuclear
What is the function of the mitochondria in a cell?
To produce energy
What is the most abundant gas in Earth's atmosphere?
Nitrogen
What is the capital of France?
Paris
Give 3 reasons you know a chemical change has occurred.
change in colour, release of light, release of gas, smell, change in temp.
What are 4 types of kinetic energy?
heat, light, sound, electrical
Which system in the human body is responsible for transporting oxygen and nutrients to cells?
Circulatory system
Which planet in our solar system has the most moons?
Saturn
How many sides does a nonagon have?
9
What occurs in a chemical reaction at a molecular level?
In chemical reactions,
Bonds between atoms are broken.
New bonds are formed (between different atoms).
Rearrangement of atoms to form new substances.
What is an energy transformation? Give an example
when energy is changed from one type of energy into another
eg - electrical to light
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
How many cents are there in $10?
1000