Want to know how to solve simultaneous equations by substitution? Look no further! In this video we learn how to solve simultaneous equations using the substitution method. I hope you find this video helpful in one way or another!

Who on Earth is exposed to the most ionizing radiation?
Check out Audible: http://bit.ly/AudibleVe
I'm filming a documentary for TV about how Uranium and radioactivity have shaped the modern world. It will be broadcast in mid-2015, details to come. The filming took me to the most radioactive places on Earth (and some places, which surprisingly aren't as radioactive as you'd think). Chernobyl and Fukushima were incredible to see as they present post-apocalyptic landscapes. I also visited nuclear power plants, research reactors, Marie Curie's institute, Einstein's apartment, nuclear medicine areas of hospitals, uranium mines, nuclear bomb sites, and interviewed numerous experts.

Notes about measuring radiation:
Sieverts are a measure of 'effective dose' - that means they measure the biological impact of the energy transferred to tissues from radiation.

Obviously I owe a debt to the fantastic chart made by xkcd, which inspired my visual approach to this video.
https://xkcd.com/radiation/

DOSES MAY VARY
The level of radiation varies widely around the world depending mainly on altitude and geology (excluding nuclear accidents).

Estimates of particular doses also vary. All numbers reported in this video should be taken as order of magnitude only.

The most contentious claim may be that smokers receive the highest dose of ionizing radiation. This is not a whole body dose, but a dose to the lungs as specified in the video. References are here:
http://en.wikipedia.org/wiki/H....ealth_effects_of_tob
http://www.rmeswi.com/36.html

Special thanks to:
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Nigel and Helen for feedback on earlier drafts of this video.

Music is "Stale Mate"

What is 1234 + 5673? and what is 6831 + 1238?
Adding two numbers using the digits from left to right is much faster than adding up from right to left. In this lesson, I am telling you how to do it. If you practice this more, you can improve your addition speed. Let's do fast addition and quick calculation. Learn with fun!

This is a lesson designed for kids and presented by Alio - 8 years girl.

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Why is Venus the hottest planet? Venus is a terrestrial planet and is the second closest planet to the sun. It would seem logical that Mercury the closest planet to the sun would be the hottest of all of the planets. Mercury is very hot with high temperatures of + 840 °F (+ 449°C) but also on the side of Mercury facing away from the sun it gets very cold - 275 °F (- 170°C) This is because Mercury has a very thin atmosphere and cannot trap in the heat. The thin atmosphere is similar to you wearing shorts and a t-shirt at the beach. The heat is not trapped next to your skin.
Venus, on the other hand, has temperatures of + 870 °F (+ 465°C)
This is hot, hot, hot. Remember, water boils at 212 degrees Fahrenheit, 100 Celcius and lead melts at 621 Fahrenheit 327 celsius
Why is Venus so hot. First, it is the second closest planet to the sun.
Venus is 0.723 AU 67.2 million miles 108.2 million km from the sun compared to
Earth which 1 AU 93 million miles 149.6 million km
This alone causes Venus to be hot. However, it is hotter than Mercury. The atmosphere of Venus is made up almost completely of carbon dioxide. It also includes small doses of nitrogen and clouds of sulfuric acid. The atmosphere is so thick on the surface it would feel 90 times heavier than Earth's atmosphere. The surface pressures are similar to diving 3,000 feet beneath the ocean. This thick atmosphere traps in the heat close to the surface in the same way a thick jacket traps heat next to your skin.

Our blood helps keep us alive.
Your blood makes up around 7% of your body weight
This equals between 1 and 1 and a half gallons 4.5 to 5.5 liters
Your blood is considered a connective tissue.

Our blood has many important functions.
Here is a list of some of the major jobs
Transports oxygen to each cell.
Removes waste material like carbon dioxide.
Helps regulate your temperature and ph levels.
Fights disease and helps the immune system do its job.
Blood transports nutrients, such as sugars, fats and proteins, amino acids,
Along with hormones which are your chemical messages of the endocrine system.
It is made up of red blood cells, white blood cells, platelets, and plasma.

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SKE provides class 5 maths quiz,class 5 maths questions,class 5 maths trivia,maths trivia questions year 5,maths trivia questions,maths quiz for class 5,maths quiz questions and answers,maths trivia questions year 6,maths questions with answers,year 5 quiz,mental maths practice,mental maths for class 5,maths questions for class 5,icse class 5 maths questions and answers,cbse class 5 maths question bank,maths questions bank class 5,class 5 maths question,year 5 maths quiz,Kids gk, gk for kids


General Knowledge (GK) question and answer for kids, children, students, Teenagers, and all with interesting general knowledge facts.

This is basic and useful general knowledge (GK) questions and answers for kids, children and also for class1, Grade 1 and year 1

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Somewhere in your body, your immune system just quietly killed one of your own cells, stopping it from becoming cancer, and saving your life. It does that all the time. The vast majority of cancer cells you develop will be killed without you ever noticing. Which is an incredibly hard job because of what cancer cells are: parts of yourself that start to behave as individuals even if it hurts you.

What is cancer and how does your body kill it all the time?

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In September of 1940, an 18-year-old mechanic named Marcel Ravidat was walking his dog, Robot, in the countryside of Southwestern France when the dog disappeared down a hole. Robot eventually returned but the next day, Ravidat went to the spot with three friends to explore the hole.

And after quite a bit of digging, they discovered a cave with walls covered with paintings, including over 900 paintings of animals, horses, stags, bison and also species that are now extinct, including a wooly rhinoceros. The paintings were astonishingly detailed and vivid with red, yellow and black paint made from pulverized mineral pigments that were usually blown through a narrow tube, possibly a hollowed bone, onto the walls of the cave. It would eventually be established that these artworks were at least 17,000 years old.


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Read on web - https://www.aatoonskids.com/sq....uare-definition-prop

Square definition, Properties, Area of Square, Perimeter of Square | Math for grade 5 | Learn math for kids | @AAtoonsKids

_______________________________________________________________
Chapters
00:00 Introduction
00:14 Definition of Square
00:36 Properties of Square
01:16 Area of Square
02:53 Perimeter of Square
04:12 End
_______________________________________________________________

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Black hole stars may have been the largest stars to ever exist. They burned brighter than galaxies and were Larger than any star today or that could ever exist in the future. But besides their scale, what makes them special and weird is that deep inside, they were occupied by a cosmic parasite, an endlessly hungry black hole. How is that even possible?

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A addition quiz covering a range of numbers, from simple scenarios to more complex calculations. Test your addition skills with these questions and check your understanding of basic addition principles.

#kidslearning #Kids #Maths #Addition #LetsTestYou | #GK| #Quiz

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👉https://youtube.com/shorts/KBi79AOOPow
Tongue twister_fuzzy vs wuzzy
👉https://youtube.com/shorts/pwGPW_cWdxc
Tongue twister_whether vs weather
👉https://youtube.com/shorts/_3yjqCC4ASA
Read with me_Irregular verbs Part A
👉https://youtube.com/shorts/OfA0FlrxVy8
Read with me_Irregular verbs Part B
👉https://youtube.com/shorts/GV9iXpKMUAk

📍📍歡迎收看《Fun Games系列》📍📍
Make a guess
👉https://youtu.be/J0E2LF9_chU
Quiz Time
👉https://youtu.be/M4JrGzedjH0
Quiz Time
👉https://youtu.be/k7cTb77sh1Q
Quiz Time
👉https://www.youtube.com/watch?v=QGwhG4Mk_Ow&t=5s
Quiz Time
👉https://www.youtube.com/watch?v=xDUJPNRh3mA


📍📍歡迎收看《Basic conversation系列》📍📍
Basic conversation Lesson 9_How can I help you
👉https://youtu.be/6Nx1dXLeQMU
Basic conversation Lesson 8_Talking about your best friend
👉https://youtu.be/NknxeVxhP7A
Basic conversation Fun Lesson_Different languages
👉https://youtu.be/mCJPRD7pahw
Basic conversation Lesson 7_Apply for a library card and borrow books
👉https://www.youtube.com/watch?v=5XCmL9clkQY
Basic conversation Lesson 6_Ordering food
👉https://youtu.be/xaJKiHn6vuc
Basic conversation Lesson 5_Visiting friends
👉https://youtu.be/5TkeC8iirVA
Basic conversation Lesson 4_Making phone calls
👉https://youtu.be/B2CUxLSK5CU
Basic conversation Lesson 3_Types of weather
👉https://youtu.be/ivyo-t50qnw
Basic conversation Lesson 2_Days in a week
👉https://youtu.be/fAtrVak5qLo
Basic conversation Lesson 1_Greetings
👉https://youtu.be/hl_foOF6EjY

📍📍歡迎收看其他《Vocabulary詞匯系列》📍📍
Animals on land_陸地動物
👉https://youtu.be/XxZXjGkJkCQ
Animals in the sea_海洋動物
👉https://youtu.be/gN7GsS6cCeg
Parts of the body_身體部份名稱
👉https://youtu.be/GviCG650sng
Theme Park facilities_主題公園設施
👉https://youtu.be/RiP4etv1ANs
Famous Landmarks_國家名勝地標名稱
👉https://youtu.be/-_rRauEiDic
Colour_顏色
👉Part 2https://youtu.be/78xUTO1My_E
Furniture in the living room_客廳內傢俱名稱
👉https://www.youtube.com/watch?v=smN7hHwHL1g
2D shapes_平面形狀的名稱
👉https://www.youtube.com/watch?v=P4wT5wmqIRY
Jobs_職業名稱
👉https://www.youtube.com/watch?v=NYDTE...
Hairstyle_不同髮型的英文名稱
👉https://www.youtube.com/watch?v=PU_BB2Kvj_w
Solar System_太陽系
👉https://www.youtube.com/watch?v=Qwwczge-_ks
Tableware_餐具名稱
👉https://www.youtube.com/watch?v=rm4FNlRQZxE
Hats_帽子的名稱
👉https://www.youtube.com/watch?v=Pl3g8JgXeGc
Egg_蛋的不同煮法名稱
👉https://www.youtube.com/watch?v=alwVK7zoplc
National Flags_國家及國旗
👉https://youtu.be/tBwHd6XHfE0
The 12 Chinese Zodiac_12生肖
👉https://youtu.be/ii8djvnF-pk
Fruit_水果名稱
👉https://youtu.be/ozwI9sk-bo4
Stationery_文具名稱
👉https://youtu.be/jsjwHTaWfkg
Colour_顏色 Part 1
👉https://youtu.be/AiiGKUEuWx4

📍📍歡迎收看《停課不停學系列》 📍📍
Number 1-10
👉https://youtu.be/wVn_0fY5i1o
Fruit
👉https://youtu.be/C3jy63nGhgA
Transportation in HK
👉https://youtu.be/5qQX0ymwwqo
Vegetables
👉https://m.youtube.com/watch?v=iu1OnlmqRI4
Sports
👉https://youtu.be/eF_Dv6owlM8
Relaxing activities
👉https://www.youtube.com/watch?v=ROv7OlyXe0A

📍📍歡迎收看《Writing a composition系列》 📍📍
👉School Picnic Day
https://youtu.be/GNXyS84JrQo
At the beach
👉https://www.youtube.com/watch?v=WcERiNMpb9s

📍📍歡迎收看《小一叩門面試》系列 📍📍
👉School Interview_Part 1:Talking about yourself
https://www.youtube.com/watch?v=wWTwr2o4_uo
👉小一叩門：不能不看題目背後的真正意義
https://m.youtube.com/watch?v=msqXn02v8tw
👉小一叩門：面試陷阱
https://m.youtube.com/watch?v=OrTx4B_cnkw

This video explains how to solve a multi-step linear equation in one variable with parentheses and fractions and variables on both sides.
http://mathispower4u.com

Sa video na ito ay ituturo ko sa inyo ang pag multiply ng simple fractions at mixed numbers step by step.

#multiplyingfractions #TeacherTes
#FilKoreanTV #Mathtutorials

Please watch also the other videos below.

Divisibility rules for 2,5 and 10
https://youtu.be/VRrvDasqIEo

Divisibility rules for 3, 6 and 9
https://youtu.be/Cj4VLhZ7584

Divisibility rules for 4, 8, 11 and 12
https://youtu.be/JiDdtnQxI1U

Divisibility Rule for 7
https://youtu.be/wAreAjCSqow

How to Solve Equations Involving Different Operations
https://youtu.be/jxgPerdbMaM

How to Find the Greatest Common Factor
https://youtu.be/aJD6I71vJcU

HOW TO ADD DECIMAL NUMBERS
https://youtu.be/RGGi7VVRb6I

HOW TO DIVIDE FRACTIONS
https://youtu.be/xi9-42YB8KQ

HOW TO MULTIPLY MIXED NUMBERS
https://youtu.be/lL8Rqmwt0kg

HOW TO ROUND OFF DECIMAL NUMBERS
https://youtu.be/7N9t4Q9takw

HOW TO READ AND WRITE DECIMAL NUMBERS
https://youtu.be/sKFlbr4-Z4o

How to Identify the Place value of decimal numbers
https://youtu.be/Hk_9MEI6V9M

How to Multiply Fractions
https://youtu.be/XcBK4kz5V50

How to change improper fractions to mixed numbers and mixed numbers to improper fractions
https://youtu.be/YiVFKEBkit4


Thank you so much for watching. Please subscribe to our channel.
God bless!



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In this online algebra 1 class, we'll review some easy steps to solve linear equations with fractions (honestly one of the more useful things in math)

We'll do 6 examples together that contain the following skills:
- Distributive Property / Distribution
- Least / Lowest Common Denominator (LCD)
- Multiplying with Mixed Numbers

*Note this does not contain cross multiplication

Timestamps:
00:00 - Intro
00:15 - Problem 1
02:04 - Problem 2
04:09 - Problem 3
06:25 - Problem 4
08:06 - Problem 5
10:29 - Problem 6

Music and Other Media:
All That by Bensound from www.bensound.com
Sixteen Twenty Five by Text Me Records / Grandbankss from Youtube Audio Library

Be sure to subscribe for more remote learning in Algebra 1!

Here are some other video talking about sleep.
以下是其他有關睡眠的影片：
Short phrases about sleeping | English Speaking | https://youtu.be/KQY-J0ce82o
-----------------------------------------------------------------------------------
Please SUBSCRIBE to our channel, LIKE, and SHARE to encourage us to share more useful and interesting knowledge.
請訂閱我們的頻道、點讚、分享，鼓勵我們分享更多有用又有趣的知識。
-----------------------------------------------------------------------------------
Welcome to watch our videos
歡迎觀看我們所創作的的其他影片
1）Basic Conversation 會話
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP


2) Grammar 語法
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP


3）English Speaking
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP


4）Funny Jokes 笑話
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP


5）Vocabulary 詞彙
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP


6）English Idioms 英語成語
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP


7）Revision Exercise 重温練習
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP


8）Fun Games 趣遊戲味
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP


9） Tongue Twister 繞口令
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP


10）Writing a composition 作文
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

Partial Fraction Decomposition Form for Repeated Factors:
A factor is repeated if it has multiplicity greater than 1.

If the repeated factor is linear, then each of these rational expressions will have a constant numerator coefficient.

If the factor is to the power of 3. Therefore, 3 rational expressions are needed in the partial fraction decomposition, with each of the denominator is raised to a different positive integer power up to 3, wih 1, 2 and 3 respectively. Since it's linear factor, each of these rational expressions will have a constant numerator coefficient.

Thousands of parents and educators are turning to the kids’ learning app that makes real learning truly fun. Try Kids Academy with
3-day FREE TRIAL! https://bit.ly/2GuGyL2

Meet our new video for kids Learn Alphabet - Letter D - Phonics for Kids.

Subscribe to our channel: https://goo.gl/iG2Bdr

#TalentedAndGifted #LearnWithKidsAcademy

Kids Academy Talented and Gifted Program for kids aged 2-10:

*****

Connect with us on :

App Store: https://smart.link/59833db06a6b8
Google Play: https://smart.link/597210af6eb83

Our website: http://www.kidsacademy.mobi
Facebook: https://www.facebook.com/KidsAcademyCompany
Twitter: https://twitter.com/KidsAcademyCo

Learn the Alphabet - Letter D | Phonics for Kids | Preschool and Kindergarten
The alphabets are the basics of the child’s learning process. This will form the base of everything that the child is going to learn therefore it is very important that this base is strong, and the child goes with clear concepts to the next standard.
Learning the alphabets can be made very easy for the kids by making it fun for them. The more they enjoy learning this process, the more quickly they will learn.
If your child has learned the letters A, B, C, let’s move on to the letter D now. So how can your child learn letter D?
Learn letter D
So how can you teach your child the letter D. Let’s start.

1. First, you show them the letter written somewhere.

D

2. Then you show them how it is written.

• Draw the first line.
• Then draw the circle in one go.

Use a chalk or a pencil or ay colorful crayon or marker to make this more interesting to the kid.

3. Then you need to teach the kid the sound of D.

The first sound is ‘deh’, which is the sound in Dog.
Repeat the sounds again and again to the kid so that he/she is well able to learn and recognize it in different places.
The kid will be best able to learn when it is taught with real examples. The things that the kid has seen and knows the name of but does not know that it is actually from the alphabets.
So what examples can you give?

Let me help you out.

1. Dad
2. Drum
3. Door
4. Dustbin
5. Desk

The kid would learn the best if the child also sees the picture of these things alongside learning the pronunciation of words. It will make things much clearer in their mind and they will be able to associate words with actual things which are very good for their learning.

Kids benefit a lot from having experience of sorting, classifying and comparing objects. These activities make the basics of numeracy skills and mathematics. It is easy to make kindergarten sorting games by using everyday objects. Provide them with opportunities to sort the same group in two different ways by shapes, colors, sizes or textures.

What needs to be taught?
1. Kids should know what is meant by ‘categorize’ or ‘sort’.
2. Another important thing to know is how to sort the same group in two different ways.

Example: Take some buttons
First, ask the kids to sort them according to size
Next by colors
Then by the number of holes, etc.
A Game to Focus on One Sorting Characteristic

1. Take two pieces of different colored cards and some items that can be sorted in more than one way, e.g. buttons, keys or plastic toy figures.

2. Place both cards on a table with some space between them.

3. Pick a silver button (if you are using buttons) and put it on the first card saying ‘this button goes on this card’. Next, take a golden button and say: ‘this button can’t go on this card’, and place it on the other card.

4. Repeat the activity with a few buttons than ask the kids to guess the sorting rule.

5. When the kids tell you that you are sorting by color then try to choose a more difficult sorting rule such as the number of holes in the button, to sort the same group in two different ways.

6. Once the children get an idea of sorting the same group in different ways, repeat the game with different rules and different objects to reinforce the concept of sorting.
Keep in mind to teach by using a game or fun activity for preschoolers and kindergarten kids as they tend to be more effective than worksheets.