Friday, June 05, 2015
What's in a Face? Are Composite Faces More Attractive than Real Faces?
Warped Words and the Stroop Effect
Crime Scene Chemistry—The Cool Blue Light of Luminol
How Do Fears Change with Age?
Can Adults Pass a Middle School Science Test? *
Is Smiling Contagious? *
Honesty: How Prevalent Is It?
Multitasking: Brain Drain or Boost in Efficiency?
Does a Cell Phone Conversation Affect Reaction Time?
'They're Not Sticking!' A Study of Gender Responses to Frustration
Friday, May 22, 2015
The volume of the water that flows past a particular point during a set amount of time.
How much water is moving compared to regular times.
The height of the water at a particular point compared to the standard sea level.
How high/deep the water is compared to regular times.
Tracking the flood
Hydrograph is a graph used to show changes in a river's discharge over time.
Can help predict how future floods will behave(amount of water,length,etc.)
The area downstream will flood for longer period of time.
It takes longer for all of the water to flow past the end point
-small stream/river are affected faster then larger bodies of water
- changes are noticeably faster since they are small to begin with
Thursday, May 21, 2015
- the area where all the precipitation accumulates is called a drainage basin
- the boundary in between basins is called a drainage divide
- rain falling on one side of the divide goes into one basin, where the rain falling on the opposite side goes into a different basin
- anytime there is t much precipitation in one drainage basin then there well be a flood
- can result from: melting snow, hail, rain water, ice storm or any other combination
Tracking the Flood
- organisations track early flooding to help plan
- what dams or flood ways need to be built
- what areas are not good for building
- what areas need food relief credits ($)
Wednesday, May 20, 2015
-water for people who need it -people can die
-give soil different nutrients -loss of land
-more fish -loss of crops
-more beavers -trees can die
- -take nutrients out of soil
- -loss of houses
I LOVE CHICKEN
-land is not flat there is always some chang in the land
-how high or low the land is.
precipitation will flow from highest elevation to the lowest elevation
Wednesday, April 29, 2015
71% of the world is covered by water, while 97.5% is salt water and 2.5% is fresh drinking water. if we run out of fresh water we will need to pay to disstile the salt water too fresh water to drink.
The top 5 countres with the highest mount of fresh water is -Brazil -Russia -Canada -USA -Indonesia, the 5 countres with least amount of water is -Bahrain -Qutur -Malta -Maldives - Nevis. The average person drinks and uses about 80 to a 100 gallons of water. And that's what we leart in are notes about fresh water.
Monday, March 09, 2015
-Caused by gravitational activity
~The highest tide movements appen when the earth, moon and sun line up
-Highest gravitational pull
-Called spring tides
-Only on a full moon or new moon
~The smallest tide movements happen when the sun and the moon are at right angles to one
-Called neap tides
Thursday, February 19, 2015
Monday, February 02, 2015
1. Nerves connect the eyeballs to the Brain.
2. The iris controls the amount of light that goes into our eye.
3. The eye gets protection from the eyelid /eyebrow
4. The optic nerve is about 20cm long.
5. If the eye is out of focus then images appear blurry.
6. The lenses changes shape so the eye can focus.
7. Rods and cones are the cells/nerves that make the image on the retina.
8. Cones allow the eye to see colours and bright light.
9. Colourblindness means there is plenty/not enough of light sensitive pigments on the retina.
10. Being blind doesn't stop people from doing things like walking and playing.
11. The eyes turn in to see how far away or ow close an object is.
12.If you lose an eye a doctor can make a(n) artificial.
13. Above the eyelid are the glands that produce tears.
14. An optical illusion is your brain and playing tricks on you.
15. the eyeball is the size of a ping pong ball.
Wednesday, January 21, 2015
We talked about Primary,Secondary and Complimentary colours.
The three Primary Colours are Red,Green and Blue.
If you mix two together you get a Seconday Colour.
The Secondary colours are Cyan,Magenta and Yellow.
Cyan is made of green and blue, missing red.
Magenta is made of red and blue,missing green
Yellow is made of red and green,missing yellow.
We are also talking about Colour Filters,
(ex)Start with a red filter, followed by a green filter.
The green filter only transmits green light...
But no green light gets through..
the light will appear black!!
We also did practice with white boards on Colours and Objects.
Solve this: What happens when a red object is hit by a green light?
Tuesday, January 20, 2015
Monday, January 19, 2015
- A secondary colour and a primary colour and
create white light when mixed together.
-Red+Cyan = white light
-Blue + Yellow
If a red onject is hit by green light it creates yellow light
Wednesday, January 14, 2015
Tuesday, January 13, 2015
Light perception happens in a paper thin layer of cells called the retina.
Light detecting cells are cones and rods.
You cant see colors in the dark because the rod cells in your retina take over in low light.
The first step to understanding the phenomenon of color is to think about it as a wave.
We call the repetitive motion of a wave a periodic motion.
When you are measuring the period of a wave you are measuring how long it takes for a wave to go through a full range of motion.
White objects will reflect all colors of light and black objects will absorb them.
Color spectrem (2015) Uploaded by windows. Available online @ http://msdn.microsoft.com/en-us/library/windows/desktop/dd372201(v=vs.85).aspx
Friday, January 09, 2015
How it works
- created by a chemical
-chemical energy is turned into light energy
-created by high temperature
-created by absorbing uv light energy
-needs constant energy
-absorbing light energy
-keeps giving off light after energy is taken away
-created by a chemical reaction
-two chemicals mixed together makes it glow
-about 4600 degrees f
-1,000 to 2,000 hours
-3 to 4 hours
Wednesday, January 07, 2015
- The creation and emission of light by absorbing UV light energy from another object.
- Needs consistent enrgy to work.
(ex) Fluorescent light bulbs.
- The creation and emission of light by ABSORBING LIGHT ENERGY from another object.
- TAKES TIME
- Does not give off light right away.
- Keeps giving light when energy source is taken away.
(ex) Glow-in-the-dark items.
- The creation and emission of light through a CHEMICAL REACTION.
- Often has LITTLE TO NO HEAT.
(ex) Glow sticks
Tuesday, January 06, 2015
Today we finished our questions for the Ted Ed video that we watched yesterday. Some of the animals that use bioluminescence ( light made by living organisms ) are the angler fish, box jelly fish, railroad worm, deep sea shrimp and many more. The advantages of using bioluminescence are
- you live longer ( prey wont want to eat you)
-Scare away your predator
- attract a mate
-attracts some food ( angler fish uses it to get close to another fish to eat)
Monday, January 05, 2015
-the creation and the emission of light by living organisms
-caused by chemical reactions
-chemical is turned into light energy