Explore the campus on a sunny day and select both natural and manmade surfaces and record data. Enter data into spreadsheet – what patterns do you notice?
HW: Read newsela article and answer questions, discuss next class, how does this relate to our findings today?
Set up heat lamp experiment for a minimum of 25 minutes, make predictions, which surface will heat up the most? How hot will it get? What location (1-6)? Enter data and discuss results.
HW: Lab write up and discuss results next class
This was the first time I did this experiment, and seeing the results definitely had the ‘wow’ factor with my 6th graders, seeing the temps was actually surprising, esp for the rocks under the heat lamp. Many students thought the sand would be the hottest from their experience walking on hot sand at the beach in July/Aug. Also, the surface temp of the playground was surprising since it was a rubbery light colored composite and not dark colored asphalt. Prior to this activity, we took notes and discussed heat – radiation, convection, and conduction, and notes on sunlight and how it causes the seasons and different climates on Earth. Under the heat lamp, position 1 was analogous to being at the equator while position 6 was at the poles. The Google Sheets will automatically graph your results once the data is entered.
If you use this activity, would love to see your results!
Google Slides 2016 (Public) – this presentation will outline what mining is, where it occurs, types of mines, what commodities are mined in the United States, and covers mining in New Jersey. Maps are from the CDC
What is mining? (pdf) – this is a guided handout that students will take notes on as we discuss mining
Sterling Hill Mining Museum – this has been an annual field trip for our school for around 30 years. Their mineral collection is amazing!
Videos: These are also available on Netflix – updated April 2018
Demo & Discussion – For this part of the lesson, students will not handle the bottles, they will answer discussion questions based on their observations only.
Share observations about the bottles.
What do the bottles have in common?
What is different about the bottles?
What do you think the original contents of the bottle were?
What phases of matter are shown?
Are any of these bottles empty? Explain.
Do all of these bottles have air in them?
Which bottle has more air in it: Cotton Balls or Water? Explain.
Which bottle is filled the most? Least?
Which bottle has has the most ‘stuff’ in it? Least?
Which bottle is the heaviest? Lightest?
How would you order these bottles from lightest to heaviest?
Estimate the mass of each bottle in grams.
Which bottle is the densest?
How would you arrange these bottles from least to most dense?
Which of these bottles can have more of the same ‘stuff’ added to the inside of the bottle? Explain.
Which bottle(s) would float in a tank of water? (I do this at the very end of the lesson with everyone at the sink)
Hands On Exploration
Each group will have one set of bottles or take turns using the demo bottles and sharing their findings.
Using a triple beam balance, the volume of the bottles, and a tank of water, answer as many of the questions above as you can. (for our calculations, we use the volume of the bottle’s original content (500 mL of sport drink) to give us an approximate density, not the actual density – for comparison purposes only)
How did your findings compare to your observations and predictions?
Dunk tank – time to find out which one will float!
Give each group of students a new set of bottles (ones that they have brought in from home) and have them make observations, predictions, and density calculations.
Additional Bottle Ideas:
laundry detergent – liquid or powder
different shapes of pasta
pop corn kernels or popped
Have each student bring in a bottle from home filled with the contents of their choice so that you have enough bottle to compare. Match similar bottle shapes/sizes together for each group or match similar contents in different sized bottles for comparison.
You can also use these bottles as part of a Triple Beam Balance Activity (blog entry).