Thursday, March 23, 2017

Forces in Motion 4 - What are simple machines?

Work occurs when movement occurs as a result of force being applied. Work can be hard! It can be made easier by using a machine. A machine lets you use less force but over more distance. 

Simple machines include pulleys, wheels and axles, levers and inclined planes. 

1) How do machines make work easier?
2) How does a pulley reduce the force needed to produce work?
3) Can you think of any examples of simple machines in your house that were not listed in the book?
4) If those are simple machines, what do you think complex machines are? Can you think of any examples?

Tuesday, March 7, 2017

Cultural Fair Country Reports

The Cultural Fair is approaching soon. This year it is Friday, March 17th. Students received their Country Report pages at the end of February and many have already completed them! I have been impressed by their level of excitement. 

In order to have everything ready in time for the Fair, students were asked to bring their items in by this Friday, March 10th. Some have already brought in items and the presentations are coming together. 

Country Reports Groups and Jobs 2017

Each student is responsible for a home project and also each student will find one picture and write one paragraph for their group’s display board. Students are not limited to the areas listed here and are encouraged to add more to their project.

Project Picture Paragraph
Games Anri Flag meaning Religion
Music Haru Homes Customs and languages
Jewelry Rein Food Climate
Homes Linda Map (capital and pop.)Economy and $

El Salvador
Project Picture Paragraph
Games Melisa Food Religion
Music Jayla Flag meaning Customs and language
Jewelry Yuma Map (capital and pop.)Climate
Homes Julian Country Gov’t type and leader

Project Picture Paragraph
Clothes Young Min Map (capital and pop.) Gov't type
Jewelry Christina Jewellery Climate
Music Joshua L. Music Religion
Architecture Keilani Homes Economy & currency

Project Picture Paragraph
Games Yuuki Homes Economy and $
Music Joshua Map (capital and pop.) Customs and language
Clothes Jessica Food Religion

Project Picture Paragraph
Games Rin Map (capital and pop.) Customs and language
Music/Clothes Jarin Flag meaning/Food Economy and $
Clothes Max Gov’t type and leader
Jewelry Kurumi Country Climate
Homes Mitsuo Homes Religion

Project Picture Paragraph
Games Kai Food Economy and $
Music Alex Country Religion
Clothes Portia Map (capital and pop.) Gov’t type and leader
Homes Suzie Homes Customs and language
Jewelry Mirai Flag meaning Climate and geography

Project Picture Paragraph
Games Shoma Country Economy and $
Music Kota Gov’t type and leader
Clothes Ranon Flag meaning Climate
Jewelry Aubrey Food Religion
Homes Victor Map (capital and pop.) Customs and language

Friday, March 3, 2017

Forces in Motion Lesson 2.2 - Work and Power

Work and power are not the same thing in Science even though we sometimes use them interchangeably in speech. Work is when a force moves an object. Forces are often being applied to objects but if there is no movement because of the force, then no work is done. The amount of force and distance determine the amount of work. So 

Force x Distance = Work

Work is measured in joules (j).

Power is the rate at which work is done. Walking up a hill and running up a hill create the same amount of work. However, more power is needed to run up the hill. 

Work/Time = Power

Power is measured in watts (w).

1) If you push on a wall, did you do any work? Why or why not?
2) Compare the amount of work and power needed if you walk up three flights of stairs or run up three flights of stairs.
3) Let's say you applied a force of 300 newtons while you push your bicycle 300 meters. How much work is done? Solve using the equation.
4) Let's say it took you 20 seconds to push the bicycle 90 meters. How much power was needed? Solve using the equation.
5) Riding the bicycle requires only 20 newtons of force to go 90 meters. It takes just 6 seconds. How much work is done? How much power is needed?

Thursday, March 2, 2017

Chance for Extra Credit in Science

Some students have asked for a chance to earn extra credit in Science. I am happy to report that there is a way for students to earn that extra credit!

Relevant non-fiction books are signed out from the OCSI library for every new unit and are available in my classroom. Students are welcome to read them at any time in the course of class. They have also recently learned how to do a non-fiction book report. The extra credit will combine the two.

Students may receive extra credit for reading a non-fiction book and completing a report on it. The report should be completed in the same fashion as it was for Reading. Extra credit must be completed before March 21, 2017. The extra credit will be applied to the overall grade prior to the report card at the end of the quarter. This opportunity will be available again in the 4th quarter.

This will be a good chance for students to deepen their knowledge about the current topic and practice their report-writing skills! I hope many of them will take advantage of this opportunity.

Wednesday, March 1, 2017

Forces in Motion 2 - Forces

This lesson covers three kinds of forces that don't require contact in order to have an effect. Gravity pulls on objects. Electricity and magnetism can push or pull. Remember, the definition of force is pushing or pulling on an object. Friction is also talked about in this lesson. 

We will be conducting an investigation into these forces tomorrow in Science.

1) Forces have both _______________ and _______________. (fill in the blanks) What does this mean?
2) What objects exert (meaning, create or have) a gravitational force?
3) What causes magnetism and electricity?
4) How does friction affect movement?
5) List a example of the effect of gravity, magnetism, electricity, and friction.

Tuesday, February 28, 2017

New Science Unit: Forces in Motion!

We are beginning an exciting new unit in Science, Forces in Motion! This is Chapter 13 in the Science textbook. This unit will take about a month and will end in a culminating activity of a field trip to Kadena Air Force Base to see force and motion in action on the base. It should be a great trip!

To begin, please take the test at this site and report to me how you did. It's only 7 questions long and it's fun! Just copy and paste this link.

Welcome Kota!

Ocean Class will again be welcoming a new student to the class! Kota Nanri will join us from March 2nd. Welcome Kota! We are glad you're here.