Physical Science

We will be building a rocket using a plastic water bottle, 3 plastic straws, tape, a cork, baking soda, and vinegar. We first taped 3 plastic straws the water bottle but then added 3 more to make it more stable. We then filled the water bottle up halfway with vinegar and rolled baking soda into a piece of one ply toilet paper and then taped the baking soda to the cork. We then went out unto the balcony and put the cork in the water bottle and shook it. The rocket was then supposed to shoot upwards. With my rocket though my partner shook it too long and the bottle exploded before we were able to place the rocket on the ground. Something that went well with the design was that the bottle was balanced when we set it down and it didn't fall over. The form was a water bottle on 6 straws. There was a pattern from the water bottle and the straws. Lastly there was a balance when the straws held up the water bottle and kept it steady.

We built a newton's cradle which was made up of popsicle sticks, twine, 7 marbles, and hot glue. So what we did to build this newton's cradle first was take 4 popsicle sticks and glued them together to make a square. We did this twice and ended up with 2 squares. We then measured 7 pieces of twine and made them all the same length. After that we then glued popsicle sticks to one of the squares. We glued the popsicle sticks so they were standing up. We then glued the square with the popsicle sticks standing up to the other square so it made up a cube shape. after the hot glue dried we glued the marbles to the twine. So what we did with the twine was fold the twine in half and then put the marble in the space between the middle and our fingers. and glued the marble to the twine in the middle. We did this 7 times and after they all dried we made sure they would be able to swing without falling or breaking. Then we took one end of the twine and taped it to one of the sides of the cube. we did this 7 times making sure the marbles lined up and were straight. We then taped the other side making sure all the marbles lined up and then took 2 popsicle sticks and glued them on top of the sides with tape. After testing the newton's cradle we made a flipgrid on which Newton's law was involved with the cradle and also how potential and kinetic energy were involved. My Newton's cradle worked pretty well although when there was 4 marbles the cradle worked best. The space between the marbles was good. The marbles were supposed to be close together and we were able to do this and this helped the netwon's cradle work better. There were 2 different shapes in this project. There was cubes and spheres. There was also repetition when the marbles and twine were lined up. Lastly there was a pattern when the parbles were repeated 7 times.