Today all classes watched an episode of the Mythbusters. That is one of my favorite shows. I love how they present science is so many different ways. I told my students that if I could do any job in the world, teaching would be my second choice. My first choice would be being a Mythbuster!
Determining Density Through Water Displacement (pg. 18). Students are given a number of irregularly shaped objects. They determine the mass by weighing the object. To determine the volume, they fill a graduated cylinder with 30 mL of water. They object is dropped into the cylinder. The difference between the water level after to object has been dropped in and 30 mL determines the volume. They then calculate the object's density.
You Are My Density (pg. 19). Students identify the density of some unknown objects and, using a table, determine of what material the object is made.
Oil and Ice. This is a density demonstration. Students placed a "blue" ice cube in a cup of oil. The ice cube is less dense than the oil, so it floats. As the ice cube melts, the water is more dense, so it sinks.
Changing the Density of a Liquid. Students place a slice of carrot in a cup of water. It will sink. They then mix a cup of salt water and slowly add the salt water to the fresh water. As the water becomes saltier, it begins moving towards the top of the water until it will eventually float.
Comparing the Density of an Object to the Density of Water. Students take two candles in small metal containers. They remove the candles. They make a balance using a ruler and a pencil. On one end, they place the metal container and fill it with water. They put the other metal container on the other end and place the candle back in the container. They also drop the other candle in water. Water is denser than the candle, so the candle floats in the water. On the balance, the water is denser so the candle cannot raise the container with water.
Core testing is done and we have picked up where we left off.
During the adaptations unit, I didn't have time to show some of the videos I wanted my students to see. Today, we watched one of them, Bugs - A Rainforest Adventure. While watching the video, students took notes identifying insects and their adaptations. 6th Grade
Density Cubed (pgs. 5-6). Students take six metal cubes made of different metals, determine the density, and identify the metal each cube is made of based on density. There was one constant in this activity. All cubes had the same volume but different masses.
What a Mass (pgs. 6-8). Students take six cylinders made of different material, determine the density, and identify the material of which each cylinder is made. There was also one constant in the activity. All cylinders had the same mass but different volume.
Students completed the last two phases of matter experiments.
Gas - Expanding Possibilities (pgs. 21-23). Students put a bendable straw in a 1/2 liter bottle. They seal the bottle with clay. They take the straw, bend it, and place it in a cup of water. Holding the bottle over a pan, student pour hot water over the bottle. The should see bubble from the expanding gas in the bottle leaving the bottle through the straw.
Gas Balance (pgs. 29-30). Students get a dowel and place two plastic bags on each end. It's placed on a large pushpin and used as a balance. Students mix a vinegar and baking soda mixture and pour the gas into one of the bags. The balance drops as the gas enters the bag. This demonstrates that gas has mass.
Condensation Sensation. Students put warm water into two cups. A cup is placed over both cups of warm water. An ice cube is placed on top of one of the cups. Students observe and record their observations. The water should have condensed quicker in the cup with the ice cube on top.
Evaporation and Condensation. Students place room temperature water in one cup and warm water in a second. A cup is placed on top of both cups. Students observe water water condensing in the cup on top of the warm water and record their observations.
Students worked on the following lab activities from their Matter Workbook.
Spreading Molecules. Student take two cups of water, one hot and the other cold. They place food coloring in each cup and observe how it spreads through the water. The particles in the hot water are moving faster than the particles in the cold water, so the food coloring spreads out faster through the hot water than the cold.
Si-C. Student take two cups of water, one hot and the other cold. They place a vitamin C tablet in each cup and time how long it takes for the tablet to dissolved. The particles in the hot water are moving faster than the particles in the cold water, so the tablet in the hot water dissolves faster than the tablet in the cold water.
Cool It and Pool It. Students place ice in one cup and nothing than the other. Water is placed in both cups. After observing the cup for five minutes, students record their observations. The ice water should have had water vapor condense on the cup while the other cup had none.
Friday, one of the greatest baseball players (and it has been argued he was the greatest baseball player ever) turned 80. I grew up watching and reading about his accomplishments. His 1954 catch of Vic Wertz's sure home run, saving Game 1 of the World Series. The Giants would go on to win the 10th inning and sweep the Series.
If you talk to a baseball fan, they will simply refer to the play as "The Catch." They will know exactly what you mean!
Here's The Catch.
Two great Sports Illustrated writers penned great tributes to Willie Mays on his birthday. Please take the time to read columns by Tom Verducci and Joe Posnanski.
Happy birthday Willie Mays and thanks for all you did to make baseball an even greater game!
There have been two no-hitters pitched in the last week.
The first was on Tuesday, May 3rd. Twins pitcher Francisco Liriano pitched a 1-0 victory over the Chicago White Sox. Not only was this his first no-hitter, it was the first complete game of his career.
Then yesterday, Tigers pitcher Justin Verlander pitched his second no-hitter, beating the Blue Jays. He faced 28 batters, one more than the minimum. He walked one batter with one out in the eighth inning, just missing a perfect game.
Today was the annual Pentathlon. Once again, it was a successful activity. Over 150 students participated this year. The three teachers, Dave Blake, Raquel Fuller, and Clark Funk, did their usual outstanding jobs. Students had a great time and the weather was cooperative! Congratulations to them for a great job.
All 7th grade students took a field trip to Bridgerland at Logan. They spent the afternoon going around and learning about programs offered at hands-on exhibits. It's been a great activity for the students. 6th Grade
Popcorn Matter (pgs.6-8). Students are given a frozen cube of shortening filled with popcorn kernals. This represents a solid. They determine a way to melt it and observe the liquid (shortening) and the atoms (popcorn kernals). They record their observations. Finally, I take a cube and melt it in a beaker and a hot plate. They record their observations and conclusions.
One M&M and Water (pgs. 9-10). Students break apart and M&M and describe it as well as identifying its characteristics. They next place an M&M on a plate filled with water and record their observations.