BIOLOGY
Define a Biodiversity Hotspot. (K/U)
A place where there is an exceptionally large number of species in a relatively small area.
Matter can be classified into 2 things mixtures and ___________.(K/U)
Pure Substances
Name all 8 phases of the moon. (K)
First quarter, -> waxing crescent, -> new moon, -> waning crescent, -> third quarter, -> waning gibbous, -> full moon, -> waxing gibbous.
True or false; Metals are not good conductors. (K/U)
False
What would happen if we overexploited the Fish in the sea? What effect would it have on the Aquatic life? (T/I)
If we overexploited the fish in the sea, the food chain would break since fish are the main source of food for sharks. In short, all forms of life that depend on fish would die, which then means that the animals that eat those predators would also die.
Draw a Bohr-Rutherford diagram for an atom with 8 protons 9 neutrons and 8 electrons. (T/I)
ANSWER CAN BE FOUND ON THE GOOGLE DOC HANDED IN. I CAN'T SUBMIT A PIC
Why do we see lunar eclipses more compared to solar eclipses? (T/I)
This is because the shadow of the earth that is blocking the light coming towards the moon, is much greater compared to the shadow of the moon blocking the light coming towards the earth.
Why do longer wires tend to have a larger amount of resistance? (T/I)
Longer wires have a larger amount of resistance since the path from the power source to the light bulb is longer.
We as humans have a responsibility to protect our ecosystems, write a small (1parag.) letter to your entire neighborhood about what they can do to help/protect our ecosystems. (A)
Answers can vary, here’s one:
Dear neighbors,
I am e-mailing you this because we have a job to do that we haven’t done yet, and that is to help our animals/ecosystem. Now, what are some ways to help? Firstly, stop hunting so often, we don’t need to catch our own meals when companies are already doing it for us. Secondly, recycle more. We are filling up our landfills with more and more garbage that could’ve easily been recycled, glass, plastic, etc. Lastly, tell as many people as you can about your movement and your actions, you can encourage others too.
We can save our ecosystems so the next generations can see them and admire them.
Your Neighbor,
Abbas Hussain
Your brother drops an unknown substance that he thinks is harmless, so he reaches for it without his gloves, you find him and make sure he doesn’t touch it. Explain to him why it is important to always wear gloves. (C)
Never touch an unknown substance because it might react with your body differently and might be toxic. Always wear gloves for safety even if you are 99% sure it is okay to touch since there is still a chance you can harm yourself. Do you want to risk your life because you didn’t want to spend 10seconds wearing gloves?
Would it be dangerous to travel through the asteroid belt in a spacecraft? why/why not? (A)
It would be dangerous since you can’t measure the movement of asteroids in the belt and can get hit by them causing severe damage to the spacecraft.
You are checking the circuits for your house and measure the current as 0.47 A. The potential difference is 12V. What is the resistance? (A)
R=V/I = 12V/0.47A = 25.53 V/A = 26Ω
Describe a scenario to show how an animal disease that started in Florida, U.S, could reach Toronto, CA.(C)
Answers may vary:
A rabbit in Florida catches a virus, then that rabbit moves around and spreads it to nearby areas. Then that rabbit gets eaten by a hawk which flies far and spreads it to Detroit. Then that bird has kids who fly to Toronto and spread the virus there.
Give 2 physical properties of water that help support all life. (A)
- The fact that it can benefit us in 3 forms (liquid, vapor, ice) we use the liquid to drink and quench our thirst. We use the solid to cool our drinks.
- The fact that it has a very high boiling point and a low freezing point. This helps us since this means that it is accessible nearly everywhere without boiling and freezing.
Explain what is luminosity? Why is the moon non-luminous?(C)
Luminosity is the total amount of light/energy a star radiates/sec. The moon is non-luminous since the moon shines by the sun reflecting off it and makes it look like it is shining.
You require an extension cord for your computer, you go to the shop and find 2 extension cords and are having a hard time deciding. Should you pick the shorter and thicker one, or the longer and thinner one? (C)
You should pick the shorter and thicker one since there is less resistance compared to the longer and thinner one.