If you have ever half-submerged a straight stick into water, you have probably noticed that the stick appears bent at the point it enters the water. However, when you remove the stick from the water it is straight again. Is this magic or is there a scientific explanation? Please explain
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Aug 30-Sept 3
Sept 6-Sept 10
Positive Bloggers said:
Sept 13-Sept 17
Sept 20-Sept 24
Positive Bloggers said:
Sept 27-Oct 1
The reason the the stick appears to be bent is that the water refracts the light therefor the stick appears to be bent. The scientific reason is that the water refracts the light.
Oct 4-Oct 8
An object that improves the way we see light is a projector. It uses a concave lense and makes the light bend outward. It helps because when your in a movie theater instead of looking on a small screen more people can come and watch on a big screen. We think the projector is using a refrating lens.
Oct 11-Oct 15
Positive Bloggers said:
Our opaque material is a School Locker. The advantages of having an opaque locker is that you can't see what is inside the locker,therefore if something valuable is inside the locker, so no one will know to steal.
Our transparent material is a non-digital clock.
An advantage of having a transparent non-digital clock is that you would be able to tell which position the hands are in, so you could tell what time it is, so if you had an appointment, you wouldn't be late.
Our tranlucent material is tracing paper.
The reason we chose tracing paper was when you want to draw a picture, but not wanting to do a bad drawing so you find something to trace and tracing paper helps for you to see the drawing lines easier.
Oct 25-Oct 29
Green Hornets said:
Our reply to the question, how did the rainbow form and why did it have so many colors, is that the rain left water particles in the air, so then the light goes through the water particles and is then reflected in all different directions, therefore creating a body of mist. A short wavelength light appears blue, violet and indigo, and a long wavelength light appears red, orange and yellow, so your eyes see the rainbow with many colors, or R.O.Y.G.B.I.V.
Nov 1-Nov 5
Science Smarties said:
The reason magma comes out of the earth is because the magma circulates underground and builds pressure until it can’t take anymore pressure so it erupts to the surface that has the most magma under ground. There are many places that have magma, but does not have a lot of pressure so it does not erupt .We the Science Smarties don’t ever except that Missouri will erupt of magma because it is flat and we don’t think that there is enough pressure built up to make Missouri erupt with magma.
Nov 15-Nov 19
Science Smarties said:
No, not all earthquakes are disasters.
One way to determine if an earthquake can be a disaster is its location. The location is important because if an earthquake hits a wheat field then there would be no sign that an earthquake had hit, but if an earthquake hit a city then there would be a lot of buildings destroyed and lots of lives taken.
The second way we think would determine if an earthquake is a disaster is how big the scale is, from 1-10.If an earthquake is a 1 than it is very small and you probably wouldn’t feel it, but if it was a 10 then you better take cover because stuff would be coming down on top of you.
The third and final determination is the resources that people would have after the earthquake. If they had all the resources that they need then everything would be lot easier then if you had no recourses and there is no way of getting things to you and you would be on your own with out help.
These three opinions are what we think that determine if an earthquake is a disaster.
Nov 29- Dec 3
DaBoom Bloggers said:
I think it would be harder to dig farther down from that 8 mile point because the earths crust becomes hot and thick. Pretty soon they would run into magma and burn the drill and equipment and they also wouldn't have a way out. Then the magma would fill up in the hole and burn them. They also would not be able to drill past 8 miles because they don't have a drill long enough, so they would have to get in the hole with the drill and if they hit magma they would burn just like we mentioned above.
Dec 5-Dec 9
Crispy Science Giants said:
I think the effects would be different (much different) if that earthquake were to happen right now because there would be much more damage. In 1811-12 there was probably not near as much buildings or special landforms that could be destroyed, but at this moment there are many buildings, homes, stores, etc. that the earthquake could have wiped out. Also, there would be a high increase of death toll. In 1811-12 a less percentage of death was more likely because there was probably very few people living in the area of where the earthquake hit. At this time many people would have been killed because there’s a higher population.
No, I don’t think there is a high chance of an earthquake like the one in 1811-12 to occur in my lifetime. I think this because the boot of Missouri is not right next to a fault line and fault lines increase chances of earthquakes. I also think this because this other earthquake occurred almost 200 years ago which explains that is was a very long time before my lifetime so I think another one will not occur until after my lifetime.
Jan 10- Jan 14
Big Macs said:
Ok so there are 365 and 1/4 days in a year and about 29 days in each month. Ok so if you want the 1st day of every month to be a full moon you would have to make roughly 27-29 days in a month so if you times 28 by 12 you would get 336 which would mean you would need 29 more days so you could have one more month which would equal 13 months so 12 months would have 28 days and then one month (July) would have to have 29 days. But you would still have 1 /4 of the year left so every 4 years I will have 1 day added on to January. So my school year would be from August to March.
Jan 17 - Jan 21
Science Kids said:
Okay, for starters, the earth is tilted at 23.5 degrees. Our nation is placed in the Northern Hemisphere, and when it is winter the Earth is tilted away from the sun, the southern hemisphere placed more in the sun rays, therefore, our nation is in the shadows, and the shadows are what make us have colder temperatures. In the summer, our planet is facing towards the sun, with the northern hemisphere placed more directly in the suns rays, and the southern hemisphere is shadowed, with our nation in the direct rays. We get the heat from the sun, in the summer, while the southern hemisphere gets the cold. That is what we believe is the cause of the weird temperature difference.
Jan 24 - Jan 28
Chocolate Thunder said:
The shadow stick is used for making shadows so we can figure out the angle of the sun.If we placed the shadow stick in the baseball field the shadow would change from morning to afternoon. In the morning we would have a long shadow because the sun is farther from 90 degrees in the sky. The shadow in the afternoon would be short because the sun is closer to 90 degrees in the sky. The shadow stick's shadow would be long because on the first day of winter the sun is the farthest away from 90 degrees and the farther from 90 degrees the longer the shadow would be.
Jan 31 - Feb 4
Awesome Peoples said:
1. You could prove whether or not the length of a planet's year is related to its distance from the sun, because the farther the planet is from the sun, the longer the year is, but the closer the planet is to the sun the shorter the year.
2. No, because it takes 687 days for Mars to orbit the sun and it only takes the Earth 365 days to orbit the sun, this happens because Mars is farther away from the sun.
3. We would be about 21 because, we would take 365x13= 4745 and you would divide it by the number of days in a year on Venus which is 225. Then you get your age.