Density of Water

 Hello Bloggers today was the first day of term 4. We had a 2 week holiday before we all got to do distance learning again. Today's challenge was super exciting. We had to see which water is denser. Since we didn't have freshwater or saltwater we had to use hot water or cold water. We could also use salt or baking soda to make it more fun. But before we get into the experiment - I have to tell you about our new challenges. We have been put into groups/breakouts for the week. We have to earn points by sharing, posting on our blog, and participating.

Im in Group tahi with Whaea Ocea. But onto the experiment, my hypothesis was that the object would float or sink slowly in cold water because it has a density of (32°F/0°C). So my group made a slideshow of our thinking. Here is a photo of my experiment and my slide with thinking:

( Two coins in water; Right hand side is the cold water, and the left hand side is the hot water. )

 So my question for you is what do you think has the better density? And why?

Lockdown Task 6: Paper plane with air propulsion.

 Hi Bloggers! Today Kea discussed how planes work. Kea learned that planes use 4 different forces of flight - thrust, drag, weight, and lift. All those combined help an air stay afloat in the air. Today me and Belinda have made a slideshow showing our planes. We made reports, facts, and photos of our plane. It has photos of how it functions an/or works. Here it is:

I found it quite challenging to do some research, but found it very easy to put it together. Ive put together some steps if you want to try to make the same plane as me:

1. Fold a piece of paper in half horizontally
2. Take out the fold and make two triangles at the top
3. When thats done with your two triangles you are gonna folder them one more time. ( On top of each other.
4. Then fold it back in half and make wings by bending the sides.
5. Fly your plane. Experiment if you plane fly´s or not.

Lockdown Task 5: 3D Tinkercad Rocket

 Kia Ora bloggers! Today we got a special visitor - Andy Crowe! ( No not Andy Crowe the PMP ) Andy taught us how to design a 3D rocket in Tinkercad. I used a variety of different shapes to create my rocket. It was kinda hard to make the bottom part lift up so I could make flames. It was easy for me to create the base and use different angles to place the wings. I had to try to bring the roof of the rocket above the base. My rocket is kind of simple because it was quite challenging. After several attempts I finally got it to be somehow similar to the video. I made rocket boosters so it could fly even faster. But I couldn´t make any flames. 

This is how it turned out:

I hope you could make a blog post about rocket you make! This rocket was fun to make and a very special thanks to Andy Crowe for taking off his time to come and teach us how to make rockets on tinkercad! The kea team really appriciates it. 

Here is a slideshow with the video if you want to make a rocket too! Go to tinkercad.com:

            

Keas Gravitational Force Experiment.

Have you ever tried a gravitational force experiment? Try taking an empty and a full bottle and dropping them both on the ground at the same time and height. Notice Anything? What happened was a gravitational pull. The full bottle fell down first right? Force is what happens when an object with a greater mass than the other falls first. This also happens when the mass of an object affects the gravitational pull.

Isaac Newton,  a former scientist is one of the many scientist who had a theory of how gravity was formed. The story or myth of how this happened was , when Newton was sitting under a tree an apple fell on his head. At first glance he thought the sky was collapsing on him. Eventually he had another theory of how gravity was formed but that´s not concluded yet.

Soon more and more scientist started to form more theories of how gravity was formed. The most common theory is that gravity keeps the things on the earth from floating into outer space. There is no gravity in space, that´s why planets float around and orbit our solar system. 

Then, a conclusion was formed. Why scientist are researching further on why there is no gravity in space. Referring back to experiment I mentioned at the beginning. Kea did the exact same experiment on Monday. They tried it with different objects, dropped them at different heights, and dropped them at different times. 

The surface force, mass, and matter affected how the objects dropped and landed. In other words the one with more mass and matter fell first. So to conclude that´s how a gravitational force affected how an object landed.

Kea´s Exceptional Science Fair

Have you ever had a science fair in your school? Well a few days before the last day before term 2 ended, Kea had a science fair in the hall. There were different groups doing different landforms or natural disasters  such as Erosion, Glaciers, Volcanoes, etc. Kea made a variety of board based on their theme. 

My theme was Erosion. I was in a group with Keasi, Leonzay, and Simon. We made a board with all our research, Variables, Ingredients, Equipment, and Changes. We  completed a science fair plan so we could plan out what we were doing and investigate further on what we were researching.

A few weeks after we conducted an experiment. Our experiment was to see which liquid would cause the most erosions. Our liquids were vinegar, water, and bleach. Our hypothesis was that the bleach would cause the most erosion becuase it was high in ph. But surprisingly it was water! My group was so shocked about the turn of events.

Then sooner after we had to set up and find out what roles each member of the group would play. The roles were 2 scientist, 1 greeter, 1 questioner, and 2 explainers. My role was scientist and explainer. 

Then we set up for the hall by putting our board on our assigned table. Then we got the ingredients used for the experiment we were doing. 

Sooner we all went to the hall and got ready for the whole school to come and see our science fair boards and experiments.  

To conclude that the end of my science fair experiment. It was fun working in our group and going out of comfort zone to try new things.

Tsunami Experiment.

 Have you ever wondered what it’s like to witness/ experience a tsunami? When kea got the chance to make this epic D.I.Y tsunami, we split into groups of 4-5. Kea made a D.I.Y tsunami with a large tray, Sand, Bark, and other optional decorations. First we filled the tray with sand and sooner the bark and rocks. Secondly, me and Sulia made paper houses to demonstrate how the tsunami would affect the buildings and towns. We made a total of 2 houses and put one of the houses on a higher ground, whilst the other one was on a lower ground.

 Our bioshield was made of bark and of small rocks.

Me and Sefa were assigned to make a google drawing of all the things we did and are doing. We did this to see how the waves would affect both houses. Then we went out and got some leaves, more bark, and some more sand and shells. After, we went to demonstrate our tsunami dioramas to the class we were in. 

Foki and Talitas group was first to demonstrate. Whaea ocea went and got a small clipboard to make the tsunami waves. She pushed the board back and forth until the wave got more force and pushed itself toward the structures. Water splashed out of the tray as we continued to create more pressure on the waves. She did the same to all the groups. There were only 3 groups inside the class I was in. 

Then we all got back to the Fale and shared what we did, how we did it, and why it was fun. And that's the end of my tsunami experience.

Kea's Volcano Experiment.

 Have you ever done a volcano experiment? Well on 21st of May, Kea had so much fun with their D.I.Y volcanoes. We got split into groups of approximately 6-5 people. Then we got a clipboard with instructions on how to make and construct our own volcanoes out of sand. We had to fill out an instructional form of all the ingredients, methods, and different ways to make a volcano. Once we were done we had to go outside and get assigned into a station.and start building. 

Ingredients: Equipment:

1. Vinegar 1. Small cup

2. Dish soap/liquid. 2. Measuring spoons

3. Baking soda. 3. Container( to bring water in)

4. Food coloring 4. Measuring cup/s.

Here are the instructions of how we made a volcano:

1. Mold a volcano out of sand ( you might need some water to make it stand or hold its shape) 

2. Once you have constructed your volcano you need to find a small cup and pour about 1 cup of vinegar into your solution. Then wait for a bit and add the next ingredient.

3. Then you need to add 2 tablespoons of baking soda into the solution.

4. Add in the dishwashing liquid and any food coloring of your choice.

5. Then you will slowly watch it explode. Some sides are lumpy, and some are smooth. The ooze will most likely go down the smooth side of the volcano.