Math Probability homework
Now, there are three situations
The probability we will go back to school by the end of January is 11/12.
The probability Mr. Kwok will teach gym is 1/10.
The probability all the students will get two doses of the Pfizer vaccine is ¾
9a) There are eight possible situations here. List them
9b) Find the probability of each situation
9c) The sum of all these probabilities is
Grade 7 Science: Heat
Heat: warm, high temperature, heat is a form of energy
Different forms of energy: ultimate source of energy = Sun (heat, light =energy)
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Sunlight + water -------------- food for plants (sugar) + oxygen
Chlorophyll = green pigments in green plants (we don’t have chlorophyll)
We cannot make our own food (so are fish, mushroom, butterflies)
- animals in the farm eat the leftover food
- animals convert the food into potential energy PE (energy that is stored inside the body; or energy that has not been released yet)
- animals run around since they change PE into kinetic energy KE (movement) + sound + heat (body heat)
- farmers work in the farm. They convert PE into KE, sound and heat
- farmers become HUNGRY (need to eat because PE level is reduced)
- farmers have pork chop lunch (PE in food is being absorbed by the body, convert into PE in farmers so they can do more work)
- think of how you behave after a Phy Ed class. You become very hungry at lunch and can eat a big meal
- farmer is exhausted. Need a nap. Zzzzzz. Do we use energy when we sleep? (yes, snoring – sound, sleep talk, twist and turn when we sleep (KE), body heat)
- when do we stop using energy? When we die. . .
Passive Voice Name:
Rewrite the following sentence so that no personal pronouns (I, we, you, us, my, they, their, our) are being used.
1. Yesterday, Dennis threw away all his books.
2. I did an experiment on Monday.
3. Mary was laughing at James.
4. Someone stole my pencil case.
5. Mr. Wilson imported Hondas from Japan.
6. These people renovated the house.
7. My grandfather ironed these shirts.
8. My neighbour shoveled the driveway last night.
9. She ordered new books for the library.
10. Someone dropped a wallet outside the office.
11. The waiters are serving dinner to the guests.
12. He installed a new computer in the office.
13. Lighting struck the old tree in our backyard.
14. She waters the plant everyday.
15. He is repairing the washing machine.
16. James Houston wrote the novel “Frozen Fire”.
17. Betty will complete her book report tonight.
18. My sister bought a pretty dress.
19. A hurricane destroys a lot of property.
20. Mrs. O’Brien will bake the birthday cake.
21. We cancelled the meeting because of the snow storm.
22. The Toronto Maple Leafs won the Stanley Cup.
23. We add a teaspoon of sugar in the coffee.
24. Class 6F will have a Christmas party in December.
25. I need to bring my gym shirt and short to school.
26) The museum is holding an exhibition on the life of the ancient Egyptians.
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27) We should not unwrap the candy in the supermarket.
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28) They sent their grandmother to the senior citizen home.
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29) I gave them a crystal vase for their new house.
30) They will go to the Moonlight Ballroom for their graduation dinner.
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