🧬 Cells
This organelle is responsible for producing energy in the cell. It is the POWERHOUSE of the cell.
A: What is the mitochondria?
This force pushes upward on an object in a fluid.
A: What is buoyancy?
Are these the correct steps of water treatment?
1. Coagulation and Flocculation
2. Sedimentation
3. Filteration
4. Disinfection
5. Fluoridation
Yes
The point where the catapult arm rotates is called this.
A: What is the fulcrum?
A student performs only one trial. Why is this a problem?
A: What is results may not be reliable?
Name one key difference between plant and animal cells.
A: What is plant cells have a cell wall (or chloroplasts), while animal cells do not?
Why do objects float in saltwater more easily than freshwater?
A: What is saltwater has greater density?
In May 2000, bacterial contamination of municipal water happened in which Ontario town? and What cause it?
What is Walkerton?
What is Heavy rainfall resulting in surface runoff containing E. coli entering the water supply system. The bacteria came from manure spread by farming practices.
Increasing the length of the throwing arm has what effect on the projectile?
A: What is it increases speed and distance?
(Think long levers)
This variable is measured or observed in an experiment.
A: What is the dependent variable?
A cell swells and bursts in distilled water. What process caused this?
A: What is osmosis?
Does temperature increase or decrease viscosity of most liquids?
A: What is higher temperature decreases viscosity? (think honey)
An increase in temperature resulting from certain gases in the Earth's atmosphere creating radiant energy and warming the Earth's surface.
What is Greenhouse Effect?
This type of energy is stored when the catapult arm is pulled back.
A: What is elastic potential energy?
This term describes all the factors that must stay the same for a fair test.
A: What are controlled variables?
This structure provides support and protection in plant cells but is not found in animal cells.
A: What is the cell wall?
This is the amount of mass in a given volume.
A: What is density?
An area of land where all the water (from rain, snowmelt, and runoff) drains into the same body of water, such as a river, lake, or ocean.
What is a watershed?
This energy is transferred to the projectile during launch.
A: What is kinetic energy?
A student tests plant growth but changes both water and sunlight. What is the issue?
A: What is there are multiple independent variables (unfair test)?
This process allows materials to move from an area of high concentration to low concentration without energy.
A: What is diffusion?
Do objects that are less dense float or sink in water?
They float
What are the 3 types of pH Levels?
What is: Acidic, Neutral and Basic
This variable is changed when testing different catapult arm lengths.
A: What is the independent variable?
What is the purpose of a control group in an experiment?
A: What is to provide a baseline for comparison?