Chemical world
Physical World
Skills in Working Scientifically
Earth and Space
100
What is a solute?
A substance that can be dissolved in a liquid
100
Name a type of energy
could be anything related to energy
100
What purpose of an experiment is called the?
Aim
100
How many days does it take for the Earth to Orbit the sun?
365
200
What is filtration used for?
the process in which solid particles in a liquid or gaseous fluid are removed by the use of a filter medium that permits the fluid to pass through but retains the solid particles. Either the clarified fluid or the solid particles removed from the fluid
200
Energy that is stored is referred to as?
Potential energy
200
What scientific variable is the one that is deliberately changed?
Independent
200
Name a scientist who had an impact on our understanding of the solar system
can be any
300
What type of Separation technique would be useful for removing liquids based on their boiling point
Distillation
300
Which letter has the highest potential energy?
(a)
300
From the data table what is the dependent variable?
Heart rate in beats per minute
300
What model suggested that the Earth was in the centre of the solar system?
Geocentric
400
What does the term filtrate refer to?
The residue or liquid that has passed through the filter
400
Which letter has the highest kinetic energy
(b)
400
Year 7 decided to see what musical genre made plants grow the tallest. They measured the height of the plant every week for 6 weeks.
What is the dependent variable?
The height of the plant
400
What causes night and day on Earth
We get day and night because the Earth spins (or rotates) on an imaginary line called its axis and different parts of the planet are facing towards the Sun or away from it.
It takes 24 hours for the world to turn all the way around, and we call this a day.
500
Mr. Li decided to conduct an experiment and set up the following:
1. Poured water into a beaker
2. Added two tea spoons of salt into the beaker
3. Mixed with a stirring rod for 2 minutes
4. Filtered the solid out
5. Set up a tripod, gauze mat and basin with the heat of the bunsen burner
What was his next separation technique?
Evaporation
500
The law of conservation of energy states that?
Energy cannot be created nor destroyed only transferred from one form to another
500
Name the inference in the following scenario
Ms. Bond-Quist observed that the oval was very wet. She then stated "It must of rained the night before"
It must have rained the night before
500
What type of Eclipse is this?
Solar