Perform 5 activities to show effects of heat
Answers
Hey Mate Follow These Activities :-
Ice Race
Break up your class into small groups or partners and give each group a plastic resealable bag and one ice cube. Then have groups race each other to see who can melt the ice cube first. Encourage groups to be creative in the way they add heat to their ice cubes. Students may use friction to help speed the melting, blow hot air on them, or put the bags in a sunny spot in the classroom. The first group whose ice cubes melt should raise their hands. You may wish to use a stopwatch and take the opportunity to discuss elapsed time as a math extension.
Thermometer Time
Have your students practice using thermometers. You may want to review this topic by screening the Temperature movie. Have groups or partners use a thermometer to measure the temperature outside during different hours, such as the morning, afternoon, and late afternoon. How does the temperature change? Why do they think it changed? Then have small groups use thermometers to measure the temperature of a cup of water. Add ice cubes and measure the temperature again. How does the temperature change? Does it change again after an hour on a sunny windowsill?
Wet Blanket
Have small groups wet two paper or cloth towels. Then have them put one towel in a sunny spot outside or inside and another in a cool, dark place. Ask students to predict how they think sunshine or lack of sunshine will affect the damp towels. Later have students observe which towel is dryer. How did heat affect the way the towel dried? Where did the water in the towel go? Remind students that heat can cause matter to change states; for example, heat can make water evaporate. This could be a good opportunity to screen or review the Changing States of Matter movie.
Rising water experiment
Using the playdough, fix the candle to the bowl so that it sits upright inside the bowl.
Pour some water into the bowl.
With the matches, light the candle.
Cover the candle with the glass cup. Watch what happens! If you want, you can add food colouring into the water to make the experiment more visible.