|Activity #2 Disappearing Water
|Time 20 Minutes
- Material 1- 3 Plastic plates or lids of the same size
- Material 2- 3 Sponges
- Material 3- Water
- Material 4- Triple Beam Balance
- Material 5- Measuring cup
- Material 6- Permanent Magic Marker
- Material 7 – Journal
- Material 8 - Camera
- Question 1- What is Evaporation?
- Question 2- What is Mass?
- Plans for part 1 of activity
- Guiding Questions to ask during this part of the activity: What is mass?
- Anticipated Student Responses to guiding questions: Weight…..Misconception to be cleared up!
- Students are to put a sponge in each of 3 plastic bins or lids of the same kind.
- Label each container with 1, 2, or 3.
- After pouring 250ml of water on each sponge, measure the mass of the container using a triple beam balance. (Make sure to balance the scales before measurement.)
- Place one container in a closet, one container in a window sill, and the third container on a counter in the room.
- Students will photograph their sponge and record initial observations in their journals.
- Plans for part 2 of activity……24 hrs. later
- After balancing the triple beam balance, measure the mass of each of the containers again.
- Students will again photograph and record their observations.
- Plot the change over the 24 hrs. on a line graph using different colors.
- Guiding Questions to ask during this part of the activity: What happened to the water? Where did it go?
- Anticipated Student Responses to guiding questions: The water went into the air.
- Analyze the graph and discuss the changes in the mass of each container.
- Be sure to discuss that the water did not disappear, that it evaporated and this caused the water to go into a gaseous state.
- Strategy 1- Practice and discussion on using the triple beam balance
- Strategy 2- Powerpoint on evaporation for further discussion
- Modification 1- Powerpoint on evaporation for further discussion
- Modification 2- social interaction
|Check for Understanding
How you will assess or check for student understanding throughout this activity.
Students will journal about the activity and what is happening.
Created by: Ms. Felice, Ms. Von Bank and Ms. Winning.