sources of heat energy

                             Sources of heat energy

              In science we are learning about the 5 sources heat energy is made of.
The 5 sources are:  Mechanical Energy, Radiant Energy, Nuclear Energy, Electrical Energy, and Chemical Energy.

Mechanical Energy: The energy a substance or system has because of its motion.

The three types of forces that can be used to convert mechanical energy into heat are:

a) Friction: Is caused when two surfaces rub against each other.
b) Distortion: Is a force that causes objects to change their shape.
c) Compression: Is a force that acts to squeeze matter into a smaller space.

Radiant Energy: This is energy that travels in wave like rays.

radiant energy is the changing of electrons. it can travel through any substances like air, glass, liquid, and space.

here is a example of radiant energy.

the sun passes radiant energy to earth.

here are some everyday examples of radiant energy:

• campfires
• microwaves
• heat from stove or oven
• heat from a over-used computer

Nuclear Energy: Nuclear energy is produced by fission of uranium. this is the splitting of a uranium atoms.

In fission, nuclear energy produces heat energy. Fission's heat is used to generate electric power in locations worldwide.

this is how nuclear plants look like:

Electrical Energy: Energy carried by moving electrons in an electric conductor.

Electrical energy is often converted to heat energy.

Electrical energy may be produced by:

a) Converting the mechanical energy of running water as in a hydro generating station.

b) Converting the heat energy of nuclear reactions or burning fossil fuels. the heat is used to produce steam which turns the generators to produce electricity.

here is a picture of electrical energy. this bulb provides energy and heat.

Chemical Energy: Energy stored in bonds between atoms and molecules.

Chemical reactions may be used to produce energy. In a chemical reaction new materials are produced.

In a battery, chemicals react to produce new chemicals, electrical energy, and heat energy.

Derek's band post

Hello class 7A, my name is Derek.

Today I am going to talk about band class. In band class we are still learning how to play our instruments properly. We have 3 flutes, 2 trumpets, one percussionist and me. I play the trombone and the violin.We are also learning about the composers of the songs we are playing. Some composers include: Mozart, Beethoven, Schubert, Dvorak and many other composers. We also learn about the different notes in music. The length of a note is measured in 1 beat. A note with 1 beat would be called a quarter note. A note with 2 beats would be a half note, and a note would be 4 beats. These are just the basic beats, it gets too complicated after this.

The instrument I play in band is the trombone. It is a relatively large instrument with a slider. Too play the instrument, you do not blow into the mouthpiece, but you vibrate your lips inside the mouthpiece to play. To play different notes, you must slide the slider to a specific location to play the note. Too play higher notes, you will make a smaller but faster vibration with your lips To play lower notes, you must make a wider but slower vibration with your lips.

In band class we play multiple songs, which includes: Forrest Gump, Irish Pippers, We will Rock You and many other songs. In band we also practice playing scales and more complicated notes. Our band class usually consists of 3 parts. First, we play our scales. Second, we play our pieces from our book, and third we play our score music.

math: decimals, percent  and fractions




Decimal numbers: are numbers that are written according to their place value. the decimal point is used to separate whole numbers from number values less than one



Fraction: is a numerical value that is not a whole number and a fraction is part of a whole.



Percent: is a number or an amount in each hundred


 A fraction, percent or decimal can change the form it is written as  but the value of the numbers don't change. Example: A half can be written as a fraction ¹/_{2 , as a decimal o.5 and as a percentage 50}%
if you want to  convert a decimal to a fraction, re-write using place value as denominator + simplify if possible. if you want to convert a decimal to a percent, multiply decimal by 100( move decimal 2 places right.) if you want to convert a fraction to a decimal, divide the numerator by the denominator. if you want to convert a fraction to a percent divide the numerator by the denominator + multiply by 100. if you want to convert a  percent to a decimal, divide by 100( move the decimal 2 places left.) if you want to convert a percent to a fraction, rewrite denominator of 100 + simplify, if possible.



when estimating percent you can easily use your benchmarks ( 50%, 25%,10%,5%, 1%0)
 50%:divide by2, 25%:divide by 4, 10%: move the decimal  1 place to the left. 5%: move 1 decimal place to the left then divide by 2 ,1%: move the decimal 2 places to the left. Example: 45% of 40, since 45 is not one of our benchmarks you can use 25%,10% and 10%. once you have did the math add the total amount of 25%,10% and 10% and you will get 18.

  By: Yoska Woldu

Our Catholic Faith

  Our Catholic Faith

 Religion is our belief in God as Catholic people. We learn about God and evangelize about him. We learn that God is Three Divine Persons; God the Father, God the Son, and God the Holy Spirit. This is called the Blessed Trinity. As human beings, we are not able to understand fully, but reading the gospels helps us to understand. All our beliefs as Catholics revolve around the mystery of the Blessed Trinity because it's the mystery of who God is. God has demonstrated his love through the Blessed Trinity, by sending his only Son, to be the Savior of the world. Also God has created us in his image. So, we are meant to love God through loving relationships.

  Everyone who was baptized in the name of the Blessed Trinity, were set apart to a mission, a mission to evangelize. Evangelization is so important, that recent popes have spoken about it to the whole church in letters, and in other documents. 

Michael's Blog Post

 Michael Ojo               Grade 7&8 Track Meet
     

         On Tuesday, January 20th, the Grade 7 and 8 students had a track meet at the University of Manitoba at the Max Bell Center. It was from 9:00 to 4:00. The events for the Grade 7's were 60m Boys, 60m Girls, 300m Boys, 300m Girls, 1200m Boys, 1200m Girls, Girls High Jump, Girls Triple Jump, Boys Long Jump, Boys Shotput, and finally, the 4x200 relays. St. Maurice did excellent overall, placing 1st in the Grade 7 co-ed relay team including Alycia, T.J., Claire and myself. Our school also placed well in many other events including Long Jump, 60m, and 1200m.  It was a very fun experience and I recommend the people who did not decide to participate at this track meet participate at the next one, at the same location, on Thursday, February 5th. Again, I would like to congratulate everyone from St. Maurice from doing an amazing job at the track meet.


 Here is a video of my 60m race from the meet:

Thank you for listening.                                                        

Grammar in ELA

     In ELA we are learning about grammar. Grammar is basically the rules and structure of a language. Of course, in ELA we are learning about grammar in the English language, but grammar is in every language.

First, we learned about nouns. Nouns are person places or things. In the sentence, “Miss Teetaert is my ICT teacher”, Miss Teetaert, ICT, and teacher are all nouns. Another way to say noun, would be subject. There are two types of nouns: proper and common. Common nouns are things that are very general like school or boy. Proper nouns are directed especially toward a thing such as St. Maurice or Jeff. They always have a capital letter at the beginning of them.

 

     Pronouns are words that replace nouns. ‘’he” would be the pronoun if we wanted to replace “Bob”. Other pronouns could be they, she, you etc...

  

After we learned about nouns, we learned about verbs or predicates. Verbs are actions that someone or something does. In the sentence, “I ate my apple”, ate would be the verb.

There has to be a way to describe nouns and verbs, so we use adverbs and adjectives. An adverb describes the verb. In the sentence, “He ran very fast”, run would be the verb and fast would be the adverb because it described the way he ran. Adjectives describe nouns. In the sentence, “The car is black”, black would be the adjective and car would be the noun because the car is the thing and black describes the way the car is.

 

That's all I have to say for grammar so here's a short video that I thought you guys might enjoy.

 

 Thanks for listening to my blog post!!!

:)

 

 

 

 

 



Calligraphy in Art

This year in Art our class is leaning about Calligraphy.Calligraphy is an art of forming beautiful letters by hand and arranging them well.  It is a set of skill for positioning and inscribing words. Calligraphy is a Greek word which means "beauty" It represents our ancestors for they were the ones who created it. In the 19th century, flat-edged pens also known as calligraphy pens, were replaced by the fountain pens, so it became difficult to achieve the beautiful curves of calligraphy letters with these replaced pens, due to its round tips. Calligraphy is commonly used to write wedding invitations, and letters for special events. It is well known over the globe. Calligraphy is meant for right-handed people, although left handed people can also try, but it maybe more challenging to do so. Today there are many different styles of calligraphy.Here is a short video on calligraphy writing in the Gothic Quadrata style.