This Week in Science

This week in science we did much work on our kinematics Units and I learned a lot. I learned that objects accelerate at a constant rate. Also I learned that to find the slope of a linear line you can do:

V1+V2= change in V
A= -------------------
T1+T2= change in T

But this will not work for something that is acclerating only something that is travelling at a constant rate. I also learned how to find when to things will colide by creating an equation and solving for the variables to find the time and place when the two objects will meet.

This week in Science (Eleven)

This week in Science we started physics. We are learning about how we look at motion and how we tell if something is really moving or not. We learned that everything is moving in actuality but if we said this than we would gain nothing. But if we compare some of these object to some others relatively they are not moving. Also to determine if something is moving or not we must have a time interval and a way of measuring the distanceit has travelled. These are the three things necessary for seeing and then measure how fast something is moving.

This week in Science (nine)

This week in science we identified different food products using a worksheet. The next day we went over this sheet and dicussed our thoughts on it. We then ordered rocks according to their hardness. My group got the extra credit on that one. Then we added five other items; a nail, a finger nail, a street-plate, glass and a strip of bronze. We then had to order these with the rocks. Scientists use these same materials to classify rocks with hardness. These materails give them known values that they can orginise the rocks around. Then on friday we learned about how minerals are in most everything including humans.

This week in Science (eight)

This week in Science we identified rocks. We found more qualities of rocks that we can use for identifaction. We also had a group of foods that we had to classify. We put these in groups and it helped us learn how to classify rocks using characteristics.

This Week in Science (seven)

This week in science we took a quiz on types of heating and plate tectonics.  We also tried to identify rocks and their rock type (Igneous, Sedimentary, and Metamorphic).  We also melted mothballs so we could see how crystals form at different cooling periods.  The ones with shorter cooling periods had more air bubbles and therefor looked clearer.  The ones with a longer cooling period had little to no air bubbles therefor they were more white than clear.  This helps in identifying the length of time the rock cooled for.

This week in Science (six)

This week in science we learned about different rock formations, layers, and their laws.

Law of Superposition-  younger rock layers are deposited over older layers

Law of Original Horizontality-  Sedimentary rock layers are originally deposited horizontally; 

any alterations that caused the rocks to bend or break occurred after the rocks were deposited

Law of Lateral Continuity-  rock deposits originally extended in all directions; if the rock deposits are separated; the alteration after the rock was deposited

Cross-Cutting Relationship-  a fault or intruding rock unit must be younger then the rock unit through which it cuts

We also took a quiz on heating.  We learned the ways heating can take place also.

Radiation-  heating though the form of energy

One example of this would be the sun with light as the energy used for heating

Conduction-  heating through particles in physical contact with each other

Convection-  heating with moving fluids

I wasn't in for Thursday and neither was our teacher and a multitude of other classmates because we went to Princeton for science competition.  We ended up coming in 7th place out of twenty but that was enough to send us to the state competition.  This was our first time in this competition and we were up against two nationally ranked teams.  We preformed extremely well.

This Week in Science (five)

This week in science we talked a lot about plates and their movements.  We learned the terms Transform, when two plates slide along each other, Convergent, when a plate goes under another and melts, and Divergent, when two plates pull apart from each other and magma comes up to fill the gap.  we also learned a few other terms like Hotspot, where magma comes up to the earth's surface.  We learned these terms on a website with video representations of all of the different movements.