Today in Science we began with the article as usual. We then had about five minutes to finish the activity and questions from the booklet we began yesterday. We then went over the questions as a class together.
The questions we answered were about the activity that involved pushing two coins off the side of a table at the same time using a ruler, and observing whether or not both of the objects landed at the same time. After three trials, we substituted one of the coins for a marble and did the same procedure. When going over the questions as a class, it was determined that the coins should have landed at the same time as well as the coin and marble. This was because the gravity pull was the same on each object as well as the air friction.
We then moved on to the next activity where we put two coins on a folded card, and flicked the card to send one coin fall straight down and the other coin to fly across the room. After three trials we changed one of the coins for a marble and did the same procedure as before. We answered questions about this activity, and then went over them as a class. We discussed that the coins and the coin and marble should have landed at the same time because the initial direction does not matter.
We then did one more activity before the end of class that involved us using a regular piece of paper and a crumpled piece of paper, and dropping both at the same time and height. We did three trials of this, answered questions, and discussed the questions as a class. Each group should have observed that the crumpled piece of paper fell faster because gravity took hold of it faster, and had less air resistance than the regular sheet of paper. Right before the end of class we gave examples of human technology that would apply to this effect, such as a parachute and a sailboat.
Next is Jessica.
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