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1. What aspect of the PBL Body System unit did you enjoy the most and why?

What I enjoyed about the PBL Body System unit was constructing the project and building more and more to see finally how the project can function. This is because, I was really excited about building the models and taking those steps to really show what to do in the system.

2. What did you learn about yourself related to how you function in a group – what was your role on the team?

I worked individually and I liked how it turned out because I was able to concentrate more, have less distractions, and prove to myself that I can work on my own and be independent.

3. What would you do different the next time you have a big project like this assigned to you?

Next time I would actually work with a partner because for a big project there are a lot of things that are included and for an individual like me, I would have liked someone else to help out.

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1) I sketched out my plan of how I wanted to design the digestive system when I am building it and functioning it.

2) I gathered my materials and made the mouth, esophagus, stomach, and small intestine.

3) I gathered more materials and created the large intestine, the rectum, anus, and some wooden teeth for my mouth.

4) I finished my project and then made some finishing touches by making some labels with a cup at the bottom of the rectum to hold the water that was going to squeeze out of the large intestine. Lastly, I included a holder for my system to hold up so that when the food comes down through the tubes it won’t mess up where the different elements will lead up to.

4. Take a few pictures of your model, getting all details documented in the photos

My photos are in front of this question.

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  1. What have you and your group accomplished this past week?

For the past week, I have accomplished building up my digestive system model including the different parts to make it function.

  1. What will be at the top of your “To do” list for next class?

Well first I want to add the small details for example my small intestine needs to show that it has broken down from the stomach to the intestine tube and show the slush transformation. I also need to make the actual project function so I can see if my system will work.

  1. What materials will you need to gather before next class?

Before next class I need to gather a piece of food and water for the functioning will happen.

  1. Post a picture of your model as it stands today (design plan or actual model)

Photo on 6-3-15 at 11.01 AM

WordPress Blog Question Prompt 2

  1. What have you and your group accomplished this past week?

What I have accomplished is connecting the tubes and pieces together so they can start looking like the digestive system.

2. What will be at the top of your “To do” list for next class?

My top will be finishing up by putting my last tube in for the large intestine, some teeth inside my mouth, and then finally making it function.

3. What materials will you need to gather before next class?

Before next class I need to gather my materials for the system to move.

  1. Post a picture of your model as it stands today (design plan or actual model)

In the top it is designed as the mouth. There is a tube leading down which is the esophagus. Then I labeled the tube toward the stomach which is the plastic bag. Attached duck tape to the bag with a tube leading in circles, the small intestine.

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WordPress Blog Question Prompts

1. What have you and your group accomplished this past week?

What I have accomplished this past week is gathering the materials that I need for my project and design my plan to plot for which object is place where and how can the system function.

2. What will be at the top of your “To Do” list for next class?

The top of my to do list for next class is to get the materials together and place them for the system to move.

3. What materials will you need to gather before next class?

Before next class I need to gather the functioning pieces so when the body moves, it can function well to show how my system works.

4. Post a picture of your model as it stands today (design plan or actual model)

Photo on 23-2-15 at 9.57 AM

Heat Transfer Questions and Answers

1. Conduction Video:

Question: Why are metals good conductors of heat?

Answer: Metals are good conductors of heat because the metal object would be immediately hot too. For example, if there was a spoon in a hot pan because we need to taste the soup, the spoon would be pretty hot because the molecules in the metal spoon are reacting too fast and so if they react too quick the spoon gets the heat and the spoon and your hand will get hot because you are touching it.

2. Convention Video:

Question: Why does hot water and air rise? Use the buoyancy principle and your knowledge of density and particle theory to help you clearly explain as well as the video.

Answer: Hot water and air rise because of the principle of buoyancy. The principle of buoyancy means objects that are immersed in a liquid are buoyed up by a force equal to the weight of the liquid displaced.

3. Question: Describe how thermal radiation is transferred from a campfire to you.

Answer: A camp fire emits light waves, which in turns transfer heat to objects by radiation.

4. Question: Write 3 well written paragraphs explaining how conduction, convection and radiation is related to states of matter. (Think particle movement that we did in our last unit!)

Answer:

The meaning of conduction is the transfer of thermal energy between particles of matter that are touching. Thermal energy is the total kinetic energy of moving particles of matter, and the transfer of thermal energy is called heat. Thermal energy is always transferred from particles of warmer matter to particles of cooler matter. When particles of warmer matter collide with particles of cooler matter, they transfer some of their thermal energy to the cooler particles. For example, when putting a hot pan on a stove the molecules from the liquid will get hot and get lots of thermal energy.

The meaning convection is the transfer of thermal energy by particles moving through a fluid (either a gas or a liquid).  Thermal energy is always transferred from an area with a higher temperature to an area with a lower temperature. Moving particles transfer thermal energy through a fluid by forming convection currents. Convection currents move thermal energy through many fluids, including molten rock inside Earth, water in the oceans, and air in the atmosphere. For example, when a hot ballon needs to be heated the ballon goes up into the air.

The meaning of radiation is the transfer of thermal energy by waves that can travel through air or even through empty space, as shown below. This is how thermal energy from a fire is transferred to your hands and how thermal energy from the sun is transferred to Earth. Everything radiates thermal energy, even objects that aren’t very warm. For example, if you keep your hands near the fire, the fire transfers heat to the hand.

The Water Cycle

There are three different processes of the water cycle. There is evaporation, condensation, and precipitation. The first step of the water cycle is the evaporation. The sun provides heat energy that evaporate the water from an ocean or a lake. The second step of the water cycle is the condensation. The water vapor turns into a big cloud due to the coldness of the air in the atmosphere. The last step of the water cycle is called precipitation. Since the cloud is up in the air the temperature is very cold. Since the temperature is cold then the cloud starts to condense and pours out rain to the ground. This is how the water cycle goes. Once rain or snow pours down, it either runs offs or infiltrates into the soil. When it runs off, the rain or snow stays on the ground. When it infiltrates, the rain or snow goes through the ground and back into the body of water.