Force

this week in science we learned about Newtons 3rd law. his law states that if you push on an object, that object will exert a force on you too. we did a lot of experamints to prove this. and then we learned the official term for it, which is Newtons Third Law.

force diagramssss

this week in science we did the following.

monday- ok well last week we finished kinamatics and stuff so its new unit time! we learned about forces and how they work. we learned that worce of certain objects is more forcelful than other objects. such as a basketball versus a bowling ball. a bowling ball has much more force on your hand than a basket ball, but the force isnt from the ball. it is from the earth. gravity is pulling it down. its not the ball thats forceful.

tuesday- today we learned baout force diagrams. we did many emaples and made a lot of force diagrams. force diagrams show the way that the force of an object is going. either if it is being pulled up, being pulled down, or not being pulled at all, which i dont htink is possible.

wednesday- on wednesday we did more exapmles and we clarified everyhting.

thursday- on thursday we pushed mr finleys car and we figured out taht even after you let go of the pbject, the force keeeps going.

fridayy- on friday we leaned more about that. we also leaned that friction of the objct onm the floor adds more forces. we made more advanced force diagrams aswell.

Motion yay............

ok so this week in science we did a lot with graphs and motion diagrams. yes, motion diagrams. on monday we realized that dot diagrams were unreliable and they could display the wrong messgage. they could be going one way and not represent the right thing. so, we learned about motion diagrams. motion diagrams display velocity, direction, positive and negitives, adn more! how greattt.
on tuesday we leaned more about how to make a moition diagram and why they are better than dot diagrams.
okay so now on wednesday we drew motion diagrams for marbles rolkling down a hill. we also learned about path legth which is the distance that u travel. and we learned abuot displacemembt which corrisponds with velocity. on thursday and frieday we did wkrosheetyse

Motion 3 day week!

this week was a 3 day week! yay!
we did indexes on monday because a lot of poeple werent getting it. of course i was one of those that do get it! hehehe. o and we learned that velocity is a fancy word for speed.

ok so now its tuesday. yay only 2 days left :D
so today we did a lot of homework reveiw and we drew graphs amd stuff.
we discussed a lot within the classroom about the unit that were doing now and so we made sure everyone understood :D

yayyy wednesday its the last day of the week!
OK SO TODAY.... we did more with graphs and indexes. mr finley drew stuff ( by stuff i mean graphs) on the board so we did activities with that durning class. what a wonderful short weeK!

MoTiOn!i!i!i!

this week in science we made graphs! yay graphs!
on monday we cleared up the whole thing about movieng and people. since none of us understood, we do now!
on tuesday we did a lot online. we looked at the website and did like 4 worksheets on graphs and stuff. it helped understand more. we then finihed that for homework and more!
on wednesday we clarified the usage of trendlines and graphs. the trend lines do exactly what theyre called. they show the trends in the data. we also clasified the way that u draw graphs.
CONSTANT RATE- straight line, moving in one general direction, no curnve
SPEEDING UP- a curve in the line going up. not staaight.
SLOWING DOWN- rising and then a straight line.
NOT MOVNG- completely straight.
what a fun week!

Motion

This week in science we started a new unit. This unit is motion. We finally finished the light unit! On Monday, IT’S MY BRITHDAY!!! HAPPY BIRTHDAY TO ME! OCTOBER 19TH!! YAY! We learned about the point of orientation. Mr. Finley walked around the room and we had to keep our telescopes on him. We realized he moved but he said that we moved. We told him he was wrong but he disagreed. We found out that depending on where you stand and what orientation you have, you see different things moving. Happy birthday to me:D
On Tuesday we dissected cow eyes. It was fun….
On Wednesday we learned about rates and directions. We leaned positives and negatives, and we learned how the math grid relates to motion. We also leaned our north, south, east, and west. Of coarse I didn’t know that!
On Thursday we did a lab about the rate of cars and if they have a constant rate or not. We figure out all the information and we made hypotheses, predictions, and experiment plans before we started. Oh and Mr. Finley was absent.
On Friday Mr. Finely was out again. We finished up our experiment and we took a quiz. Happy weekend!

Wrapping Up Light

Guess what happens this week!
Yup, u got it. TEST. O what a joy. Ok so we did a lot of fantastical things. Including studying and learning and so much fun stuff like that. You’re so jealous.

Ok so on Monday we did more reviewing of what we had learned. We talked more about particle models and wave models.

Then on Tuesday we got 4 different models on the board and we had to say what was wrong with them and grade them with our rubrics that we made on Monday night. We went over them and picked out the wrong and right things of them all. Then we learned how to draw diagrams correctly and we took notes on it.

For homework we had to do the first 6 sections of the study guide... fun.

After Tuesday came Wednesday, shocker. We did more with refraction and prisms. And we had to do the study guide for hw… again.

Thursday, day before the test. Wahoo! I went to the study session with mr.finley. yay bagels. It really helped me understand the concepts more so I am happy I went. In class did the prism thing where we found out how it refracted and stuff. We saw the reflections of the rprism and the refractions of the prism. It was pretty cool that we predicted exactly what happened.

Friday. Dreaded test.

Light Light Light! particle and waves

This week in science we did a lot of learning. On Monday we were all so tired :( but then we started science and it was like a splash of water on your face! ...kind of. Ok so on Monday we continued with what we started a little last Friday. We put the ruler inside of the beaker of water and observed. Yay observing! We noticed that the ruler appeared to be getting fatter from the side as it entered the water. And from the top of the jar it looked like the ruler was broken. It appeared to be bent although we know it was perfectly whole.
On October 6, 2009, which was a Tuesday, we learned about Huygens, and Newton. One had a particle model and one had a wave model. We made hypotheses using the particle model because we thought it was correct. We made a model where the light goes through the glass using a particle model.
On Wednesday we went in more depth on the whole wave model and particle model. We found out that the particle model isn’t correct but we use it when it works. The wave model is really the one that is correct. We found out how the stuff moves through light as well.
On Thursday we saw how waves work. We made a final hypothesis which was this. When light goes through a more dense material, it moves toward the normal. And when it goes through a less dense material, it moves away from the normal.
Friday- NO SCHOOL!

Light woohoo~

This week in science was really intense. We did so many experiments and exciting things it was crazy! Ok so we started off the week on Tuesday! Why Tuesday? Because of Yom Kippur! Go holidays! We did these huge experiments that were really important on Tuesday! They’re so important that we’re doing a whole entire lab report on them! Ok so it had to do with of course, light, and lasers! We found out the following ideas/ whatever you wanna call them! We learned that surfaces vary in their reflectivity, “shiny” surfaces reflect better, and that the colors that are not black show up brighter. I know what you’re thinking, oh my goodness that’s a lot of information for JUST a Tuesday! But wait, there’s more! Yes, more! Ok so we also came up with this theory that where you point the laser, the laser makes the angles change. What? Angles? Where did that come from? Well, you’ll find out tomorrow!
Oh my gosh it’s already tomorrow! Happy Wednesday! Ok so today we got more into the whole angles thing. Well first of all, last night’s homework was to write an experiment for measuring the angle of a laser bouncing off of a mirror. Now let’s name the angles, for now let’s go with angle A and angle B. that works for you right? We came up with a hypothesis. Wanna hear it? Ok! Well angle A and angle B should always be the same. It’s brilliant! Absolutely wonderful! So the way we tested this is we experimented. A turn out our hypothesis was correct! The experimenting took over Thursday and on Friday we just reviewed and stuffs! K that’s my blog 4 this week! Peace out bloggers!

Light and Mirrors

This week in Mr. Finley’s science class we did a lot of experiments! We also earned quite a few ideas including things like reflection. We learned that if you shine a laser onto a mirror, then you see a faint dot on the mirror where you would expect the laser to point. If you look around the room, you’ll find the proper dot that is shining just as bright as it would without the mirror redirecting its light. Now you might be saying to yourself, doesn’t that mean that the lasers’ light is reflecting twice? Once off the mirror onto the wall, and off the wall into your eyes. Yes, it’s true!! That is what happened with those good old lasers and mirrors! The way we know that this is happening is we tested it; of course! If you get the erasers and clap the dust out of them like we did last week, you can see the direct path of the laser going from the laser itself, off the mirror, and onto the wall! Amazing!!

We learned these ideas in science by observing, making hypothesizes, and experimenting. Mr. Finley would tell us an idea once and while and make us figure out if it is true of false by testing it! Science is so exciting! As a class we discussed certain things like- how is it possible that the light from the laser is over on the wall over there, even though we’re pointing at the mirror?! It was a stumper until we experimented and taught ourselves how it works.

It is SO important to know these ideas! I mean sure, I could have lived a long, happy life without knowing how lasers work, but now that I know, it’s so great! We really should know how these things work because it is a part of our everyday lives. We use light to see all the time and I mean ALL THE TIME. Lasers have a great deal of real world application…. I think!

Light

What science ideas did you learn?

I learned that when you use a laser pointer there is a stream of light. the light bounces off of particles, such as the flour particles, and we are able to see the stream of light. I also learned that when you go into a dark room with absolutely no light entering the room, you can't see anything. light needs to bounce off objects and enter your eyes to let you see things. The last idea i learned is that when using a light bulb

How did you learn these ideas?

i learned these ideas in many ways. the main ways were by experamenting, discussing, and learning from Mr. Finley. an example of when we experamented was with the laser pointers. we had a theory that there was a light beam that our eyes can not see. we used the supplies Mr. Finley supplied us which were socks, flour, and erasers, to test this theory. we experamented and found that if we clapped the erasers with four on them and created lots of dust, we could see the light beam which was not visible to us before.

Why is it important to know this idea (What real world application is there)?

it is important to know this idea of light because we use light everyday and we should know how it works. it is important to know how our eyes work also. we should know things like how we see in the dark and if we can see at all.