Ecosystems
(K/U) Water is an abiotic factor. ( True / False )
False!
(A) What are WHMIS symbols provide examples of jobs that require you to know them.
WHMIS symbols (Workplace Hazardous Materials Information System) they help people understand the dangers of products.
Jobs required to know these symbols:
- Scientist
- Firefighter
- Construction worker
(K/U) Describe the difference between Pluto and the eight planets.
The difference between Pluto and the eight planets is that Pluto is a dwarf planet and the eight planets are not dwarf planets.
(K/U) What is the electrostatic series?
A list of things that have been noted down depending on their ability to hold on to electrons.
(C) Argue why scientists should receive funding to record information about biodiversity.
Scientists should receive funding to record information about biodiversity, so that they make sure that the animals and environment is sustainable and healthy. Also they need funding for the materials and the work they are doing as well as recording information like how that ecosystem is doing.
(K/U) What is the difference between chemical bonds and ionic bonds?
Chemical bonds are chemicals linked between two atoms, which hold the atoms together.
Ionic bonds are chemical bonds that form between oppositely charged ions.
(A) Why is it safe to watch an eclipse of the Moon, but not an eclipse of the Sun ?
it is safe to watch an eclipse of the Moon as it is dark and does not damage your eye when looking at it, but an eclipse of the sun, if you look at the sun it is possible that you go blind as your eye cannot stand the brightness of the sun.
(A) Compare the consequences to the environment of using an electric car and a hybrid car.
Electric car is more eco-friendly and uses electricity rather than the hybrid car which uses gas that contaminates the ecosystems and environment.
(A) Suppose that you are a science writer who is working on an article about the effects of the biomagnification of certain chemicals. What questions would you ask a group of scientists who recently created a new pesticide ?
- Why they created it ?
- What benefit it has ?
- Is it harmful ?
- Does it effect the environment ?
(T/I) Why does Joseph John Thomson name his model the raisin-bun model / plum pudding model?
Joseph John Thomson name his model the plum pudding model since every atom was a sphere packed up with a positively charged material, called pudding.
(C) In an email to a friend, explain how calendars were helpful to ancient civilizations.
Salam Huda so you asked how calendars were helpful to ancient civilizations. Well you see back in the day it was hard to know what month, day, year, season it was, so calendars helped ancient civilizations know what season it is, what day, what month, what year using calendars. Therefore they were helpful to ancient civilizations to figure out seasons, days, months, years, etc.
(T/I) Why is it unsafe to plug an appliance with a three-prong plug into an extension cord with a two-slot socket ?
Three-prong plugs with outlets that only have two slots for the plug removes the use of a three-prong plug and could lead to an electrical shock. So therefore that's why it's not safe to do it.
(T/I) Why are ecosystems important to life?
They are important to life since they provide essential materials to survive for both humans and animals.
Important things include:
-home for animals
-food for both humans and animals
-medications to humans using certain plants.
-etc.
(C) Explain why chemiluminescence is a chemical reaction.
Chemiluminescence is a chemical reaction since for chemiluminescence to happen, substances must react with each other to then produce the light. Therefore this is why it is a chemical reaction.
(T/I) Big sailing ships have a lookout post, called a crow's - nest, on one of their masts. Why is the crow's - nest as high on a mast as possible ?
The crow's - nest is as high on a mast as possible, so it helps the person standing on it see if there is anything coming in the way of the boat like a wave a wooden piece anything, and that person tells the driver of the boat if he should turn since something is in the way. Therefore that is why the crow's - nest is as high on a mast as possible.
(C) A classmate does not understand what electricity means. In an email explain what electricity is and what are its uses.
Hi Zahra today you asked about what electricity is and where are it's uses, so I am here to answer your question. Electricity is a form of energy that occurs from the interaction of charged particles, like electrons and protons. Examples of where electricity is used:
when your room has light, the light bulb uses electricity to light up the area.