One of this week’s Science challenges was the “Paper Tower Challenge.” For the Paper Tower Challenge, we had to build the tallest tower out of an 8″x11″ piece of paper and 12″ of tape. My group had a plan to fold the piece into long rectangular prisms and put a piece of paper on top and repeat the process. Unfortunately, that did not work so we had to add rods that would help the force keep its balance. When we tried that it helped but did not succeed and the timer ran out so we couldn’t finish. If the tower stayed up it would have been about 29 inches or 2′ 5”. This week was awesome and I can’t wait to try some more challenges.

The Young salmon is the only omnivore on the river food web. My Evidence is that it is an omnivore and omnivores eat a plant and animal. The reasoning is that a salmon is an omnivore because it eats the algae and sculpin.

This week in science, we worked in teams to create a water bottle insulator that kept the water inside the bottle the coldest for the longest amount of time. First, we planned what we would need, how we would build it, and sketched our first design. Next, we tested our design to see how well our insulator worked. Below you will see the results and how we will improve our first insulator to make it even better!

 

An insulator is… Slows heat energy transfer.

 

Here is a picture of our original design: 

 

The materials we used were… Hot Glue, Tape, Tin foil/aluminum, Plastic bottle, Wool, Cotton.

 

Results! What was the temperature of your water to begin with? After 15 minutes? After 35 minutes?

 

Time	Temperature (in Fahrenheit)
0 minutes	50 degrees
After 15 minutes	53 degrees
After 35 minutes	57 degrees

 

The engineering process includes thinking about how to make your design better and re-building your product. The improvements that we will make to our insulator are… More tin-foil, no wool, 

 

These changes will improve my insulator because… There is more tin-foil and it is placed tight on

 

New results: More tin-foil

 

Time	Temperature (in Fahrenheit)
0 minutes	48.2 degrees
After 15 minutes	46.4 degrees
After 35 minutes	60 degrees