What is a controlled variable?
Something you keep the same
What position is the collar of a bunsen burner when its lit and why
Closed to produce a safety flame
What is the unit that forces are measured in?
Newtons
What technique is used to separate suspensions
Filtration
How long does it take the Earth to orbit the sun?
365 1/4 days
What was the brand of Mr Noack's first car?
Kia
Where does the background science information go in a science report?
Introduction
What is the first thing to do if you spill chemicals in a lab?
Tell the teacher
Define a force
A push or pull on an object that causes its motion to change or to deform
Give an example of a colloid
Milk
What causes the tides?
Gravitational pull from the moon and sun
What is the food known for never going bad or expiring even after hundreds/thousands of years
Honey
What are the dependent and independent variables?
Independent is the one that you change. Dependent is the one that you measure.
Why is hair tied back when conducting experiments?
To keep it from open flames and chemicals
What is the name of the contact force that opposes an objects motion?
Friction
Why doesnt filtration work on a solution?
Particles are dissolved and too small
What causes the Earths Seasons?
The tilt of Earths axis
How many whole chickens does Mr Noack eat in a week?
4
Why do we repeat experiments several times?
To increase the reliability
What are two ways that conical flasks are used differently to beakers?
For swirling substances and for filtering.
Gravitational force, magnetic force, electrostatic force
Define heterogenous mixtures
A mixture of two or more substances, not uniformly or evenly distributed.
Explain why its summer in Australia while its Winter in Japan
Japan is in the northern hemisphere while Australia is in the Southern hemisphere
What are the items needed to craft an eye of ender?
Ender pearl and Blaze Powder
Why do we need to control variables in an experiment?
To ensure that the the results are only from the changes to the independent variable, and not from other factors.
What is the name of the equipment used to balance evaporating dishes on tripods?
Pipe clay triangles
Explain the relationship between mass and gravity
The larger the mass, the greater the gravitational attraction
Name and describe the three types of mixtures
Solution: A solute dissolved in solvent
Suspension: Small particles suspended in a liquid. Will settle over time.
Colloid: Tiny particles in a liquid that makes it not see through and wont settle.
What moon phases produce neap tides?
What is the densest element?
Osmium