Chemistry
What are the three states of matter?
Solid, Liquid and gas
How are sound waves created?
Through vibrating particles (answers must include vibration)
Does light waves travel longitudinally or transversely?
Transversely
Walking is a form of Kinetic energy. What type of energy is food?
Chemical potential energy.
What is a producer?
It is an organism that makes its own food.
What is the chemical symbol for Sodium?
Do sound waves travel transversely or longitudinally?
Longitudinal
KEYWORDS: Absorption and reflection.
Explain the difference between white and black using the keywords.
White reflects back all colour. Black absorbs all colour.
What is the law of energy?
Energy is neither created nor destroyed.
How much energy is transferred each step of the food chain?
10%
What do we call the process of a liquid turning to gas?
Evaporation
If a sound wave has a high frequency. How would you describe the wavelength?
The wavelength is short/small.
List the different colours in visible light.
Red, Orange, Yellow, Green, Blue, Indigo, Violet
Energy transformation: Describe the energy transformation that occurs in a light bulb
Electrical energy --> Light + Heat
Organise these words from smallest to largest.
Community, Organism, Ecosystem, Population
Organism, Population, Community, Ecosystem
Besides being solid. Name another physical property of metals that we learned in class.
Lustre, Malleable, Sonorous, Ductile, Conductivity, Density.
Name three parts of the ear that helps with hearing.
Outer ear, Auditory canal, Ear drum, Cochlea, Outer Ear
Name the three different types of mirrors.
Extra 100 points if you can tell me which one enlarges images.
Plane, Concave and Convex
Concave mirrors enlarges images.
Heat transfer: How would you describe the process of convection?
Convection is when hot air rises and cool air sinks
What is the difference between structural adaptation and behavioural adaptation?
Structural adaptation has to do with how the body is shaped. Behavioural adaptation has to do with how the animal behaves to increase its survival.
Electrons are found on the outer shell. Protons and Neutrons are found in the nucleus.
In a longitudinal wave, we describe the particles as being in areas of compression and rarefaction. How would you describe the similar sections in a transverse wave?
The Compressed areas will be the crest/peak of a transverse wave. The Rarefaction areas will be the trough of a transverse wave.
At the back of your eye you have the retina. What is the name of the two cells that help you see light and which one helps you see colour.
They are called rods and cones. Cones help you see colour.
Non-renewable energy vs renewable energy. Which one is better and why?
Renewable energy is better. It can be recycled, cleaner energy, keeps our planet healthy, cheaper etc
List the 7 different classification sections. Hint: it starts with Kingdom then Phylum...
Kingdom, Phylum, class, order, family, genus, species