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 Teacher Assignments Teacher Entries Work 6/15 5/16 The Force of Friction 5/15 Testing Time 5/4 Week 7 Blog 5/1 Elastic Force & Gravity 4/25 Dream Job 4/19 Energy 4/17 Charging a Battery 3/22 Building a Battery 3/19 Show All Battery KWL 3/13 About My Place 3/12 Chimacum Creek Conclusion 2/28 Student Entries

 Article posted June 15, 2012 at 03:19 PM GMT • comment • Reads 267 Work is when a force causes something to move. Reading a book is not scientificly work. Pushing a brick over the table is work. When my team measured the friction of the blocks, the work was 0.189 Newton-meters. The motor used 0.2 newton-meters. Article posted June 15, 2012 at 03:19 PM GMT • comment • Reads 267
 Article posted May 16, 2012 at 03:30 PM GMT • comment • Reads 38 Thanks to lexlucis_msls at photo bucket How much I love science. :) Article posted May 16, 2012 at 03:30 PM GMT • comment • Reads 38
 Article posted May 15, 2012 at 03:34 PM GMT • comment • Reads 70 In inquiry 6.1 I learned that different surface types require different forces of friction. For example it takes less friction force to pull a block on waxpaper than on sandpaper. In inquiry 6.2 I learned that the more weight an object has the more friction force it takes to pull it. For example 1 block of wood will be easier to pull than 2 blocks of wood, In inquiry 6.3 I learned that different surface areas will take different force of friction. For example a short narrow side is harder to pull than a wide long side. We measured sliding friction by pulling a block with a spring scale. We used the spring scale to calculate how much friction force it took. I learned that when constructing an experiment you must only have one manipulated variable and one measured variable. All the other variables are controlled. Otherwise the results of your experiment may vary. For example in our experiment of different surface areas the conrolled variables were the pull distance, the speed, slope, and suface type. Article posted May 15, 2012 at 03:34 PM GMT • comment • Reads 70
 Article posted May 1, 2012 at 03:01 PM GMT • comment • Reads 200 I looked at the websites on the blog challenge thing. But, I didn't find anything that really showed my kind of creativity. I like to write. Stories, poems, other things. I decided to write a poem for all of you. River Water River water everywhere, River water in th air. River water on the ground, River water I have found. River water I can see, River water it may be. River water with you and me, River water can't you see? River water is quite calm, River water has soft palms. River water can not end, 'cause river water is my friend. Article posted May 1, 2012 at 03:01 PM GMT • comment • Reads 200
 Article posted April 25, 2012 at 03:32 PM GMT • comment • Reads 125 One way you could propel a cart across the floor is to pull it with a rubber band. But that is boring and plain and unoriginal. Another way to move the cart is to snap the rubber band on the back of the cart so the cart propels forward. You could also twist the rubber band around so the wheel flies forward. You could also make a catapult. But enough about that, now is a time to talk about the difference of mass and weight. Mass is more like how much space you take up. As weight is how much gravity is pulling you toward the center of the earth. To measure mass you use a balance. To measure weight you use a scale. We learned how the increase of mass increases the weight. We measure mass in grams and kilograms. We measure weight in pounds or newtons. Force is a push or pull. Force affects something or causes something to happen. Article posted April 25, 2012 at 03:32 PM GMT • comment • Reads 125
 Article posted April 19, 2012 at 03:19 PM GMT • comment (2) • Reads 96 My dream job is to be a teacher. I have always wanted to teach people and I think it would be a fun job to have. I love to help people and I love schools, so being a teacher would be very nice. I would also like to be an author. I love to write and read. I like to use my imagination and come up with ideas. Article posted April 19, 2012 at 03:19 PM GMT • comment (2) • Reads 96
 Article posted April 17, 2012 at 03:06 PM GMT • comment • Reads 139 I learned that in 2010 we used 811 more pounds of carbon than in the 1930s. That is so amazing. It is also scary. We have more cars and less trees than before. But now we have solor powered road lamps. So we have negative and positive affects on the amount of carbon released into the environment. Insulation helps conserve energy by using less enrgy to cool orwarm a room. I learned that to be safe with electriciy you need to be careful when you are using electrical appliances. You need to keep things that could dangle into lights out of the way. You need to make sure that only bread is put into toasters. That only electrical plugs are in electrical sockets. The fuels that put less carbon in our atmosphere are solar power, wind power, andd nuclear power. These kinds of power are unlimited and dont get used up. Other kinds of fuel like oil or coal aren't unlimited and can get used up. Article posted April 17, 2012 at 03:06 PM GMT • comment • Reads 139
 Article posted March 22, 2012 at 03:35 PM GMT • comment • Reads 107 When a battery gets charged electrical energy goes from the cord plugged into the wall into the battery. Then the eletrical energy flows into the battery and turns into stored chemical energy. Next you connect the battery to the light bulb. The stored chemical energy turns back into electrical energy. Then the battery turns into heat and light energy. That is the kind of energy that light bulbs use. Motors use mechanical energy. Soon enough the battery runs out of stored chemical. Then the battery goes back into the charger and gets charged again... Article posted March 22, 2012 at 03:35 PM GMT • comment • Reads 107
 Article posted March 19, 2012 at 03:33 PM GMT • comment • Reads 130 Zinc, copper, a blotter paper, a grain of white, and copper sulfate solution make a battery by creating a full circuit through from the zinc to the copper sulfate to the copper to the light bulb and then to the zinc again. The blotter paper prevents the battery from short-circuiting. The zinc releases a negative and the copper gets a negative. This makes zinc the positive side of a battery and the copper a negative side. This is how zinc, copper... make a battery. Yay. Article posted March 19, 2012 at 03:33 PM GMT • comment • Reads 130
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