Category Archives: Science

Matter * Energy * Life On Earth: Integrated Hands-On Science Program.

Watershed Survey

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1) Name the major mountain ranges and other important geographic and geological features near your house. 

We have a canyon by my house in Balboa Park.

 2) Trace the water you get in your kitchen, from precipitation to tap.

Ocean–> purification center–> toilet–> house.

 3) Describe the soil around your house.

 Well I live in an apartment so we have a lot of landscaping around and a lot of grass.

 4) What were the primary subsistence techniques of the indigenous cultures that lived in your bioregion before the Europeans arrived?

Balboa Park was first inhabited by Native Indians when Columbus claimed the land.

 5) Name five edible plants in your watershed and their seasons of availability.

 Cilantro, Basil, Rosemary, Thyme, and also tomato plants

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Marine Web

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maddy

This marine food web was actually a lot of fun to work on, using the KPCOFGS (Kingdom, Phylum, Class, Order, Family, Genus, Species). First our class chose one marine animal to work around, in my case phytoplankton, and found 15 other marine animals that either ate or were eaten by other animals. Along with this we also found the Genus and Species of all of the animals we used in our web. After we found their common name, their genus, and their species, we also had to research their rank. The ranks that marine animals have are; Producer, primary consumer, secondary consumer, etc, or decomposer. In the end I feel like I got a tremendous amount of information out of this project that I will keep with me for a long time.

 

Science

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Do you know how to make a circuit with a single string, a battery, and a light bulb? Most people would answer no, but dont you want to go the extra mile and learn new things? There is an easy way for you to learn this… that is called science class.All it takes is a more interactive inviroment for students to work in and more science class time! Science can be the start of great things like knoledge, college, and better jobs.

The fact is, students dont get enough time to work on core studies such as math and science. That means no projects like making switches, circuits, or even mini volcanoes! Some schools sit at their desk the whole period reading out of books or coping notes off the white board! It is important to start the active learning early because when the student gets to high school it will be easier to get into AP classes. This is why hands on projects will be more fun for the students, and they will be able to get more out of it.

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Resistance and Incandescent lightbulb

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What is Resistance (R)?

To create resistance you need two forces pushing against each other. Lightbulbs have to resist the current to create light so when the electrons are going through a circuit to the lightbulb resistance stops some of the electrons which will make the lightbulb (wire) heat up and create light.

Think of resistance like this: you are pulling a pumpkin in a wagon. As you go up a hill there becomes some resistance when you pull. It becomes more difficult to pull the weight up the hill. When things like these become more difficult it is because two forces are pushing against each other.The same thing happens inside the circuit, the only difference is that as the two forces in the circuit push against each other there becomes heat in the wire and the lightbulb starts to glow or light up.

What is an incandescent lightbulb?

An incandescent lightbulb is when the electrons on the bulb go through the wire and resistance agitates the electrons creating light.

7th Grade Circuits

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  • An open circuit is a circuit is an electric circuit in which the normal path of current has been interrupted
  • A closed circuit is an electric circuit providing an endless path for the flow of current.
  • A short circuit is a circuit that is closed but does not have a source in which the energy can go to. That makes it so the battery dies faster and there is a possibility of damage.
          SAFETY
  • When using a COPING SAW to cut wood, make sure your saw is in line with your shoulder so that you can always make a straighter line.
  • SAFETY GOGGLES should be worn at all times. Severe injury could occur if goggles are not worn at all times.
  • HACK SAWS are meant to cut metal, and metal alone. When using a hack saw, like a coping saw, make sure your saw is aligned with your shoulder and your goggles are on. Also, hack saws are very easy to break so use them with care.

 

 

 

*Science* Category

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Science posts go here…

Lab Projects (photos, diagrams, slideshows, & videos of your completed Projects or Project Exams);
Theory Slideshows and Animated Simulations (Use Keynote to make animations!): Explanations of: How Human’s Hear, How Speaker’s Work, etc;
Science Posters (scan or create digitally);
Combined Science-History Projects (e.g., Inventions Timeline; e.g. History of The: Automobile, Cell Phone, etc.); Combined Science-Math Projects (SONAR math challenges, etc.).