We began the day with math.
Today’s goals:
-I can use isometric dot paper to show three dimensions of an object
-I can do a pictorial drawing using translations of a view to give the impression of three dimensions
-I can sketch the top, bottom, side, front and back view of a three-dimensional figure
-I understand how many sides a figure has and I can use this understanding to answer problem solving questions
The students showed amazing teamwork and gave excellent advice on how to draw 3-D figures. Students showed perseverance and persistence when it came to drawing the 3-D figures! Way to go!!!!!!
After first recess and lunch we had French.
After French we reviewed our experiments from yesterday to gain a better understanding that air has mass, air takes up space, and that air exerts pressure.
After second recess and lunch we, we performed more experiments to learn about the properties of air! We continued to learn how air takes up space and when air is burned then it takes up less space.
We put a candle in water and then flipped a cup over the candle. We saw that the water started to rise up in the cup!!! Again, from this experiment we can see that air takes up space so the water was not able to go into the cup but the fire from the candle uses up all the oxygen in the cup and therefore there was more room for the water to enter the cup and rise up. A lit candle needs to draw oxygen from the air in order to continue burning. If you limit the amount of air available, the candle's flame eventually goes out once it uses up all the oxygen. So, when the oxygen is all used up, there is now room for the water to enter into the cup. We were also challenged and asked where we experience more air pressure: at sea level or up in the mountains. We will explore this challenge tomorrow. We also got to see how air expands when heated!!!
Today, we did an experiment with a balloon on a plastic bottle that was placed in hot water and then cool water. We saw that when the balloon was placed in hot water the balloon inflated!!!! We found out that is because hot air: rises, the molecules move quicker, they are more spread out and it is lighter. Then we put the bottle in cold water and we saw that the balloon deflated!! We were able to deduce that this is because cold air sinks, becomes
denser and heavier.
So we can apply this knowledge to hot air balloons:
We did one more experiment to explore the effects of hot air rising. An aluminum coil was hung from our ceiling that was standing still. Once Ms. Jaskolka put some candles underneath the aluminum coil, it began to spin!!!!! We were able to conclude that hot air rises and as a result, the candle heats the air under the aluminum coil. The aluminum coilbegins to turn as a result of the warm air rising and following the pattern of the coil! Very cool!!
Homework:
1. Read Daily
2. Math pg. 86-87 Questions 1-5 and 7, 6 is optional
3. Finish UOI - readings and questions
4. Mind map - add air has mass, air exerts pressure, air takes up space
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