Chemistry
What is an atom?
The smallest unit of matter
What is energy?
The ability to do work
The ability to make things move
Which layer of the Earth is the thickest and makes up about 84% of Earth's total volume?
Mantle
What are cells made of?
Organelles
How many cards in a deck of cards?
52
What are the three states of matter?
solid, liquid and gas
Unit used for energy
Joules (J)
What happens at a divergent tectonic plate boundary?
Plates move apart from each other, creating new crust as magma rises.
Give one advantage for sexual reproduction
genetic diversity
If you added up all the numbers on a dice, what is the answer?
21
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
The Himalayas were formed by the collision of the Indian and Eurasian plates. What type of plate boundary is this?
Convergent boundary (continental-continental)
What is the function of the mitochondria in a cell?
To produce energy
What is the most abundant gas in Earth's atmosphere?
Nitrogen
Give 3 reasons you know a chemical change has occurred.
change in colour, release of light, release of gas, smell, change in temp.
A real-world example of energy transfer.
Three main types of rocks that make up the rock cycle.
Igneous, sedimentary and metamorphic.
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
Name the process that occurs when particles gradually mix until the concentration is even
Diffusion
What is an energy transformation? Give an example
when energy is changed from one type of energy into another
eg - electrical to light
The colder, denser plate (oceanic) slides beneath the warmer, lighter plate (continental) and sinks deep into the Earth's mantle.
Alveoli.
What Australian animal is the twenty cent coin?
Platypus