Ueno Zoo

What We Did:

At Ueno Zoo, Mr.Fedley assigned us in groups and we had to find our animal’s information for our brochure. The member of my group was Oliver, Sayaka, and Charlie. Oliver’s animal was Bat, Charlie and I had Tiger, and Sayaka had Dhole. We had a hard time at the zoo because we actually got lost. The Zoo was huge and it was hard finding the animals (even though we had a map).
When Charlie and I  visited the tigers, they had a big space and some trees and grass.
This is what it looked like, pretty isn’t it?

In my opinion, the tigers looked a little hungry. Maybe the zoo person forgot to feed it. The tiger also looked a little frustrated but calm. The tiger was walking the whole time. I think the tiger was frustrated because maybe it didn’t wanted people look at it.

Why I think there are Zoo’s: I think  that the purpose of Zoo’s are to let the people have the opportunity to see and learn about animals.

If I was an animal at the zoo, would I be happy living there?
I would be very sad because I need to be far away from my family. I would be very shy of the people looking at me and kept in a glass place. But once I get used to the Zoo, I wouldn’t be afraid.

What do you think the zoo could do to improve the lives of the animals at the zoo?
They should think about the animals environment. For example, like the polar bears. In summer in Japan, it is really hot. The temperature goes up to 28~34 degrees Celsius and people go to the zoo for summer vacation. Poor Polar bears, the ice around it doesn’t help, just a design. They only have cold water, although the temperature of the water would change because the sun heats the water. I think the Zoo people should really improve on that.

Should we have zoos, or should we visit zoos?
I think people should visit zoo’s because if we have zoos, it will take up a lot of space. But if we visit zoo’s, it wouldn’t take up a lot of space.

Our Forces Design Task: Wrapping Up The Experiment


Completing our Experiment

We made 27 balloons and there were some extras. The balloons amount of water was all 150~200 grams. But the extra ones water amount was under 150 so we couldn’t use it for experiment. After the experiment Hanna and I did some math and calculated the average of the result. Satoshi didn’t do anything at first but after he came and helped. 

Our Results

Height Result Average
1.5 meters 45.55 . 651m2
2 meters 45.35 . 563m2
2.5 meters 98.45 . 737m2


 What Our Results Mean

As you can see, the result for the last one has the largest number. But when you look at the second try, the result is smaller than the first try. So this means that it doesn’t mean that the number will get higher when you change the height. Maybe the amount of the second waters balloon was smaller than the first water balloon amount.

Errors In Our Data

The errors in our data was that I made a mistake and measured the splash of the water balloon, but we were supposed to measure the puddle. We had to calculate a lot and Mr. Fedley helped us too. It was a bit hard but next time, I would like to be careful.

And Our Hypothesis Was….

The Radius is going to get bigger as we go higher because there is more speed and the gravity force will get larger. Maybe we were right, because the last ones result was bigger than the first and the second try. But the second try was smaller than the firsts one.

And The Rest

What I learned during this experiment was to cooperate with each other and not make one person do things. Otherwise you won’t learn how to comunicate or learn anything about the experiment.

Moving Forward

I think that I should think before doing something, because it can make things faster.

Our Forces Design Task: From Planning To Starting Our Experiment

Meet Our Team!

In this experiment I am working with Hanna and Satoshi. Satoshi is the smart one and Hanna is the funny one. They both are really cool and chill, and people who you could work with easier and faster.


Choosing Our Experiment

This experiment was an assignment which was given by Mr.Fedly. We had to make our own so my group and I brainstormed what experiment to do. Our first one was the rubber band experiment which we pull it and measure the distance. But another group took our idea so we made a new one. It was an experiment using Water balloons. In this experiment, we drop them from different heights so there is Gravity force and we measure the radius of the puddle.

Making Our Prediction & Research Question

Ok, so this is our Research Question: “If you drop a balloon with water in from different heights would it have a larger or smaller splash?.” And our prediction/hypothesis was “The Radius is going to get bigger as we go higher because there is more speed and the gravity force will get larger.”

Variables & Equipment

  • The one you are going to change: The height of the place we are going to drop the balloon.
  • The one you are going to control: The Amount of water because we need to make each balloon weight about the same(90~100 g).
  • The on you are going to Measure: The Radius of the puddle because it changes.

The variables and equipment for this experiment is really simple and easy to get.

You will need: (Those are NOT my photos. I got it from http://search.creativecommons.org*)

-Water Balloons

Water Balloons III

-Measure Cup-To measure the amount of water

white wine vinegar

-Chalk- To outline the puddle of the water balloon


-Weight Scale-To measure the water balloon weight


-Video Camera-To see the experiment

Sony DCR PC100E Video Camera

 -And a Meter Stick-To measure the splash


 Our Method:

(1)  Measure 350ml of water with the measuring cup and measure it with Scale (Equal amount and weight).

(2) Pour water inside the top of the balloon and secure it with a plastic band.

(3) Do this process with 3 or 4 balloons.

(4) Drop one balloon from each floor and video.

(5) Measure the radius of the splash with the chalk and the meter stick

(6) Compare all the results! 



I don’t think there are risks using water balloons, but if you are worried of getting wet, be careful using the balloon.




Science Student Lead conferences

This work is about animal and plant cells, angiosperms and gymnosperms, and also the twister experiment we did in science class:  http://blogs.yis.ac.jp/19chene/2012/12/03/science-cells-pollination-reflection/#comments 

I chose this post(work) because I think I wrote the post really well and explained the information very good. I also enjoyed working with my group and doing the experiment because it was easy, fast and fun. I also think I did a good job on making the graph on world because it explains the results. It also has a diagram of the plant/animal cell so you can understand more about it.

Science Cells & Pollination Reflection

Animals and Plant cells

As you can see, animal cells and plant cells both have cytoplasm, nucleus, and cell membrane. Their shape is very different and there are chloroplast, vacuole, and cell wall which can only be found in Plant cells.


One of the main types of plants are Gymnosperms. They reproduce by producing cones(pine cones). The cones give off spores from the male cone. The wind carries the spores to the female pine cone.


Angiosperms reproduce through flowers. Gymnosperms which have separate male and female cones, flowers contain both     the male and female reproductive systems.

What We have learned:

During this unit, we were learning about flower cells. We had to go to a park and sketch flowers. After sketching the flowers we had to label the parts. It was challenging because I didn’t know parts of a flower unless if its like petal or something like that. Then Mr.Fedley bought some flowers for us to cut and look at the different parts. Those flowers had different colorful colors and they were pretty.

We also made twisters and experiment. We had to measure the twister when it falls. After doing the experiment we made a Graph:

So we did 4 trials for the experiment. Me and my group added the Average second. The biggest number was 1.1175 which is trial number 4:

 What I enjoyed and did not enjoy:

During this unit I enjoyed going to the park and sketching flowers because it was fun, and I learned a lot of things about Flower cells. What I didn’t enjoy  during this unit was when we did the test because I didn’t read the questions carefully. So I would like to re-take the test again.



Science: A Little Bit About Matter

1) Different Types of Matter: There are 3 different types of matter. Liquid, Solid, Liquid, and Gas.

Solid: When solid melt, the particles vibrate faster and break free. The higher the temperature the greater the energy of particles and the faster they mover or evaporate. Liquid: When a liquid is heated, energy is supplied to the particles making them all move faster. The speed of the particles continues to increase as the temperature rises. If the heating is continued long enough many of the particles throughout the liquid will eventually move fast enough to escape from the liquid. This is how BOILING occurs.                                                                                                                                                    Gas: When gas is heated on a very hot temperature, it will evaporate and turn in to air.

2) Change of States: There are 5 different changes of state. Melting, Boiling/Evaporation, Condensation, Freezing/Solidification and Sublimation: 

Condensation=gas to liquid (when a water droplets on window that forms humid air comes into contact with cold surface), Melting=liquid to gas(when liquid is boiled, it evaporates and becomes gas) Freezing=liquid to solid (Like snow), Evaporation=liquid to gas(water turning into steam), Solidification= liquid to solid (when the liquid is at the freezing point), and Sublimation=Solid to gas (dry ice turning directly into carbon dioxide from solid form). 

3) Our Activities: In science class, we learned about Changes of states using experiments. Measuring the temperature of water boil(liquid to gas).We put in some ice into water, and put fire on a bunsen burner to boil the water with ice. The water with ice boiled, and evaporated when the temperature was on 99.5 degrees Celsius. We  also learned the different types of matter which is liquid, gas and solid.