Wednesday, October 21, 2009

Science and Math Activity Plans


science cream
Show pictures of a glass of water and then an ice cube. Ask "Which picture is made of water?"




Explain that both are pictures of water. Water can come in different forms. Today we'll explore the solid form and the liquid for. Ask "What is the difference between the ice cubes (which are in the solid form of water,) and the glass of water (which is in the liquid form)?" Write down their guesses on the board. Tell them today we will investigate this question by doing a science experiment.

Divide the children into group of 4. Give each group a digital thermometer, bag of ice cubes, and a glass of water. Tell the students we will test the temperature to see the difference. Using the National Library of Virtual Manipulatives, open up a pie chart on the projector. Have the students hypothesize which will be colder, and leave the graph up on the screen as they begin their experiments.

Record the temperatures of each groups ice cubes and glasses of water. Chart these on a bar graph from the National Library of Virtual Manipulatives. Explain to the children that they have proved their hypothesis. Ice cubes are colder than a glass of water. Explain our class conclusion is that the solid form is colder than the liquid form.

Ask the children if this rule hold true for all liquids that turn into solids. Graph their answers on the pie chart again leave it up on the screen as they begin to test their second hypothesis.

Give each group a baggie with an ice cream liquid form, and scoop rock salt into their bags of ice.

Recipe for Homemade Ice Cream
1 tablespoon sugar
1/2 cup milk or half & half
1/4 teaspoon vanilla

Have the children measure the temperature of the liquid mix, and then record their answers again on the bar graph. Then have the children place their liquid bag into the bag of ice. Model how to shake the mix into ice cream, then have them take turns in their groups shaking the bags.

Test the temperature of the frozen ice cream. Record the answers again on the charts. Point out that the frozen solid form is still colder than the liquid form, just as it was with water. Congratulate them again on proving their hypothesis and finding a conclusion.

Pass around cups and spoons and celebrate their discovery by eating the ice cream!



TPACK questions:

Content:
Objective 2: Investigate water and interactions with water. Observe and measure characteristics of water as a solid and liquid.

Pedagogy:
Inquiry Process Skills
  • Analyze data
  • Come to a conclusion based on inference
  • Observe temperature changes between solids and liquids
  • Develop a hypothesis through predictions
  • Measure the temperatures
  • Acquiring and process data on the online charts
  • Come to a conclusion based on inference

Technology:
Use Temperature Probes to measure the temperature of the solids and liquids. Also incorporate online integration through virtual graphs. These tools will aid in making the lesson come to life as children are able to do science instead of reading about it, or hearing about it.

1 comment:

  1. Heather,

    This sounds like a great idea for an experiment.

    ReplyDelete