Sustainable Ecosystems
What are the two parts of an ecosystem? (K/U)
biotic and abiotic parts
True or False
melting point is a quantitative physical property (K/U)
true
What is Cosmology? (K/U)
The study of the universe.
What is charging by friction? (K/U)
it is when you charge two objects by rubbing them against each other.
Which city would you expect to be more environmentally friendly? (T/I)
A city that doesn't focus on intensification
OR
A city that stresses on using intensification instead of creating new buildings.
The city that stresses on using intensification instead of creating new buildings.
Name three occupations that would require you to know safety icons and WHMIS symbols. (A)
Answers may vary.
Example:
Police officer, firefighter, mechanic.
Give an example of the Doppler effect in our lives. (A)
Answers may vary
Example:
When a fire truck is approaching our house, the sound of the siren gets louder. When it is in front of our house it is the loudest. And when it passes our house and moves away, the sound of the siren becomes quieter.
Name the laws of electric charges. (C)
1. Like charges repel
2. Opposite charges attract
3. Charged and neutral objects attract each other
Calculate the units of energy for each trophic level. The trophic efficiency at each level is 13%. There is an oak tree leaf, then a caterpillar, then a treecreeper, then a hawk. assume that the oak tree leaf has 6394 energy units. Round answers to two decimal places. (A)
Rounded answers:
Caterpillar: 831.22 energy units
Treecreeper: 108.06 energy units
Hawk: 14.05 energy units.
If an atom has 14 electrons, how many energy levels are occupied? (T/I)
3
Name the three types of matter or energy that make up our universe and how much they make up of our universe. (C)
Dark matter: 23%
Dark energy: 73%
Visible matter: 4%
Give an example of how we could get shocked in a playground. (A)
Answers may vary
Example:
When we slide down a plastic slide, we sometimes get a shock on our hand.
Argue in two to three sentences why canopy fogging is the best method of collecting information of the biodiversity of insects. (C)
Answers may vary.
Example: Spraying insecticides on insects is the best way to catch them, because they will escape if we use the other methods of measuring biodiversity. When they are unconscious, it is the best way to study them.
Name the first 20 elements in the periodic table of elements in order. (C)
Hydrogen, Helium, Lithium, Beryllium, Boron, Carbon, Nitrogen, Oxygen, Fluorine, Neon, Sodium, Magnesium, Aluminum, Silicon, Phosphorous, Sulfur, Chlorine, Argon, Potassium, And Calcium.
Why do you think studying the earth's motion around the sun is important? (T/I)
Answers may vary
Example:
It could tell us when the seasons are coming.
How many cells would you find in a 9V battery? (T/I)
9/1.5
= 6 cells.