Agenda 31/05/2010

- Pass back and talk about one world
- Take notes + Review on characteristics of Life and Reproduction

Goal: Understand the different between Asexual + Sexual Reproduction

Agenda 27/05/2010

- Had Sound, Sight, and Light Test

Agenda 26/05/2010

- Review for the Test Tomorrow

Agenda 25/05/2010

- Finish up the unit on hearing + Balance
- The Structure of the Ear
- Test our Hearing
- Pass out Review sheet fo the test

Agenda 24/05/2010

- Did One World for Problems of the eye

Agenda 19/05/2010

- Review Sound by:
Filling out the sound packet
- Go over the sound packet
- One period to work on the one world

Agenda 18/05/2010

- Discuss when to do one world write up
- Work on One world

Agenda 17/05/2010

- Start One World
- Tuesday One world
- Wednesday 2nd Period
Write up One World

Test Next Thursday May 27th

Agenda 06/05/2010

- Review
- Finish Filling out eye Worksheets
- Pass back labs
- If we finish, Heads up 7 up

Brainpop Video: Refraction and Diffraction

Brainpop Video: Light

There are two different types of light Natural lights, like the sun or even some animals which can make light from chemical reactions, and artificial lights, and there are two ways to make this type of light; by heating something to make it lit up light like candles or running an electric current through a solid like light bulb filament, and gas(neon). Artificial light is caused when matter shows energy in the form of light rays. We can also see thanks to light, light hits visible things and bounces off, this gets reflected into our eyes, which is how we see. As I said from the video summary before, light can travel through empty space. Light compared to anything or anyone travels fast, as fast as 300million meters in one second. Light can be reflected to bounce off and travel another way, but always straight, although light doesn't always exactly travel straight. Because when light travels through a transparent matter it bends/refracts but when the light is out of that "boundary" it heads straight again, this happens because light travels in different speeds, light travels slower therefore the line of rays bend. But, one like lightening is a electrical effect, which releases lot's of energy as a form of light.

Sound Experiment

1. How does the length of the tuning fork affect its pitch?
The longer the tuning fork the deeper the sound gets, so the shorter the tuning fork the higher the pitch of the sound.

2. How does soiund travel through solids, liquids, and gases?
Sound travels faster through solids and liquids, and through gases it travels slower.

Optical Illusion Experiment Summary

In this experiment about optical illusions, we put a see through glass in front of us, and put the real flame on one side, and on the other a person would be standing. We would move the person or the bunsen burner to make it look like the person was holding or blowing fire.

How does the distance in front of a mirror affect the distance it appears to be behind the mirror?
The distance of the object in front of the mirror is the same as it appears to be on the mirror.
So it would look something like this:
(the left is the real and the right is a illusion)

Agenda 05/05/2010

- Show People your blogs and discuss
- Fill out light packet together (Review transverse vs compression wave)
- Do sound experiments
How does sound travel through a vacuum, gas(air), solid, liquid
How does the length of a tuning fork affect its pitch?

Agenda 04/05/2010

- Finish discussing optical illusions
- Figure out Frames per second that is required, For the car in the garage
- Finish updating your blog

Brainpop Video: Waves

The video on waves in brainpop is about the two different types of waves electromagnetic and mechanical waves, which includes sound waves, light waves, and ocean waves. The difference between the two types is that mechanical waves need a medium (any kind of matter that's disturbed by energy) to move through whereas the electromagnetic waves don't, they can travel through empty space. But they also have a similarity, that both of the types send transfer energy from one place to another. Mechanical waves looks like it moves matter with them, but they don't, they go back to it's original place after its disturbance of waves, when its energy is passed on to another figure. Like I said before, electromagnetic waves travel through completely empty space, that is how we get light from the sun to earth. These two are different but are measured in many similar ways. The highest part of a wave is is called the crest, and the lowest is called the trough. An amplitude is the distance between the middle of the wave and the top of the wave, this tells us how much energy the wave is carrying, the more amplitude the greater the energy, and finally a wavelength is the distance a wave travels in one cycle. Frequency also measures waves. Frequency and Wavelength are related, the higher the frequency the shorter the wavelength. Transverse waves are most electromagnetic waves and ocean waves. But, waves like sound waves are called compressional, matter is moved about in the same way as energy, this forms a series of compressions which vibrate, which is how you hear sound.

Mechanical Waves: Ocean Waves, Seismic waves, Sound waves and Slinky waves.
Electromagnetic Waves: Light waves and Radio Waves

Agenda 03/05/2010

- Talk about optical illusions
- Do optical illusions/take a picture and put it on your blog. Describe how your optical illusions works. Make sure to discuss the distance to a mirror and where its image appears.