Friday, April 13, 2018
This week lesson is very interesting, we will learn about Motion
Chapter 15 Force and Motion
Lesson 1: What Is Motion?
VOCABULARY
Types of Motion
Suppose you are on the playground. What kinds of motion do you see? A girl throws a ball forward. It curves up and then falls down. A boy bounces a basketball. It goes up and down. Some children run fast and zigzag as they play tag. Others go back and forth on swings or up and down on seesaws. Still others go round and round on a merry-go-round.
You can observe many kinds of motion on a playground. The next time you are on a playground, think about all the ways you move.
An object can keep traveling in one direction, or it can change direction. Objects can move fast or slowly.
Every object has a position or location. A school bus stops at the same position every day, so you know where to wait for it. You know the position of the cafeteria in your school. The cafeteria’s position does not change. What is your position right now?
Motion is a change of position. To get to the cafeteria, you would need to change your position. You would need to move. When you ride a bike down the street, the bike changes position. It is in motion. If you park the bike in a bike rack, the bike is no longer changing position. It is no longer in motion.
COMPARE AND CONTRAST What is one way in which each kind of motion is different from the others? How are all kinds of motion the same?
Distance, Direction, and Time
Suppose you are on a trip with your family. You ask, "How far do we have to drive to get to the next city?" What you want to know is the distance. Distance is how far it is from one location to another.
Distance is often measured in inches, yards, or miles. Scientists use units of centimeters, meters, and kilometers. You can use a ruler to measure distances.
An important thing to know about motion is its direction. Your family’s car is going east from Chicago to New York. Your friend throws a ball up into the air.
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The greyhound is a fast runner. It can cover a long distance in a short time.
This ice skater is going very fast and travels a long distance in a short time. Her direction changes as she rounds the curves of the track.
Another important thing to know about motion is time. Time is a measure of how long it takes for an object to move. Something that moves fast covers a long distance in a short time. A fast third-grader can run a 50-meter dash in 10 seconds. A snail needs an hour to crawl the same distance!
In science, time is often measured in seconds. Other units of time include minutes, hours, days, and years.
COMPARE AND CONTRAST You are walking home from school. Your parent is driving from your home to school. How is your motion different from your parent’s?
The motion of this honey is slow. Its direction is straight down
Speed
Speed is the distance an object moves in a certain period of time. Suppose a lion could run 80 kilometers (50 miles) in one hour. You find its speed using both distance and time.
Suppose that things travel the same distance in different amounts of time. They would have different speeds. A third-grader who runs the 50-meter dash has a speed greater than a snail that travels 50 meters.
What if two objects traveled for the same amount of time but they went different distances? The object that traveled farther had a greater speed.
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Monday, April 9, 2018
Wednesday, March 21, 2018
Saturday, March 17, 2018
Grade 3 Math and Science H.W
Mar.18-Mar.22
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Date
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Math
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Science
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Sunday, Mar.18
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English Pre SAT exam
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What Causes Earth’s Seasons?
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Monday, Mar.19
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Language Pre SAT exam
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What Causes Earth’s Seasons?
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Tuesday, Mar.20
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Fish Garden
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Fish Garden
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Wednesday, Mar.21
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Revision for the Math Pre SAT exam
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What Causes Earth’s Seasons?
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Thursday, Mar.22
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Math Pre SAT exam
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What Causes Earth’s Seasons?
HW: Answer the sheet
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Monday, March 12, 2018
Dear All,
It is
finally the time of the year of our annual Spring Carnival that takes place at
the Fish Garden on Tuesday, March 20th, 2018 at 10:00 am – 4:00 pm.
For grades 1 till 3 parents must attend with his/her child to enjoy the sunny
fun day with all of us. Tickets are 200 L.E. per person. If you would like to
purchase tickets please staple the money in the channel book.
See you all
then!
Monday, March 12, 2018
Dear
Parent/Guardian,
We will be
giving standardized tests to measure your child’s learning. These tests include
questions that relate to the information your child is learning in school.
Many
students do not test well even though they know the material. They may not test
well because of test anxiety or the mystery of taking tests. What will the test
look like? What will some of the questions be? What happens if I do not do
well?
To help your
child do his/her best on the tests, we will be using some practice tests. These
tests help your child learn what the tests will look like, what some of the
questions might be, and ways to learn to take tests. These practice tests will
be included as part of your child’s daily study pack at home. Please do NOT
answer anything with your child at home, only help your child by studying the
question from the practice test that were already done in class with his/her
teacher.
These tests
help your child learn what the tests will look like, what some of the questions
might be, and ways to learn to take tests.
The actual
tests will be on the following dates:
·
Language arts – Sunday, March 18, 2018
·
Reading – Monday, March 19, 2018
·
Math – Thursday, March 22, 2018
Important
Note: some of the questions in the practice tests we still haven't covered in
class, because the test includes all the needed information to master your
child's grade level skills. There are also some questions that will not even be
covered throughout the year because the test is designed to measure all students'
with different levels and to help us discover any students with advanced
learning skills. The test has nothing to do with your child's grades in school,
so please do not stress yourself out.
By showing you are interested in how your child is doing,
he/she will do even better in school. Enjoy this time with your child. Good
luck with the practice tests.
Good luck!
Grade 3 Math and Science H.W
Mar.11-Mar.15
Date
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Math
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Science
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Sunday Mar.4
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Prepare the students for the Pre SAT exam
HW: Sheet
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What Causes Earth’s Seasons?
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Monday Mar.5
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Prepare the students for the Pre SAT exam
HW: Sheet
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What Causes Earth’s Seasons?
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Tuesday Mar.6
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Prepare the students for the Pre SAT exam
HW: Sheet
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What Causes Earth’s Seasons?
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Wednesday Mar.7
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Prepare the students for the Pre SAT exam
HW: Sheet
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What Causes Earth’s Seasons?
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Thursday Mar.8
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Prepare the students for the Pre SAT exam
HW: Sheet
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What Causes Earth’s Seasons?
HW: Answer the sheet
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Date: Sunday, March 11th, 2018
Lesson 1: What Causes Earth’s Seasons?
VOCABULARY
Axis: This imaginary line through Earth is called Earth’s axis.
Rotation: The spinning of Earth on its axis is called rotation.
Revolution: One trip around the sun is one revolution.
How Earth Moves
As you read this book, it may seem as if you’re sitting still. In fact, you’re moving through space at about 107,000 kilometers (about 66,000 mi) per hour! Although you don’t feel the motion, Earth is both traveling and spinning.
Earth spins just the way a top does. Picture a line going through Earth from the North Pole to the South Pole. This imaginary line through Earth is called Earth’s axis. Look at the picture on this page. As you can see, Earth’s axis is not straight up and down. Instead, the axis is tilted a little. The spinning of Earth on its axis is called rotation.
Rotation isn’t the only way Earth moves. Earth also revolves around the sun. One trip around the sun is one revolution. Each revolution takes about 365 days. People use Earth’s movements to measure time. One rotation of Earth takes one day. One revolution of Earth takes one year.
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MAIN IDEA AND DETAILS What are the two ways in which Earth moves?
Seasons
During the year, some parts of Earth have four seasons—winter, spring, summer, and fall—with different weather. One weather difference is temperature. You might wonder what causes these temperature differences.
In the Investigate, you learned that when light rays strike directly, the light is brighter than when they strike at a slant. That’s because light rays that strike at a slant spread out more.
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Earth is tilted on its axis as it revolves. This causes the same part of Earth that is tilted toward the sun at one time to be tilted away from it at another. Places, where the sun’s rays strike directly, are warmer than places where the rays strike at a slant.
Where the sun’s rays strike Earth directly, the season is summer. Where they strike Earth at the greatest slant, the season is winter.
MAIN IDEA AND DETAILS what causes seasons?
Day and Night
Earth takes one year to revolve around the sun, but only one day to rotate. As it rotates, half of Earth faces the sun and has daytime. The other half of Earth faces away from the sun and has nighttime.
Since some places have day while others have night, it can’t be the same time everywhere. People have divided the world into time zones so that places near one another have the same time. When it’s 12 noon in Orlando Florida, its 6 o’clock in the evening in Madrid, Spain.
MAIN
IDEA AND DETAILS What causes day
and night?
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