Learning Experience 7: Sink or Float

TEACHER’S GUIDE

Materials:

For each pair of students:

2 Student Activity Sheets for Learning Experience 7 (Please see PDF)

Crayon

Balloon

Marble

Spoon

Button

Styrofoam peanut

Cork

Rubberband

Four liter container

Property word chart from Learning Experience 1

Paper towels

Water

Preparation:

Read the background information in the Properties Teacher’s Manual. (Please see PDF) Provide each pair of students a four liter container filled with water and one of each object listed above.

Basic Skills Development:

Reading

Listening

Speaking

Testing

Observing

Comparing

Predicting

Evaluation Strategy:

Given several objects, students will predict which objects sink or float. Students will then test each object and record their predictions.

Vocabulary:

float

sink

heavy

light

Objective: The students will experiment with objects to develop a meaning for sink and float.

What happens to objects when you put them into water?

Students should predict which objects will sink or float before they test them in the water. Allow students to test objects in the water to see if they were correct. Have students record their results on the activity sheet for Learning Experience 7 in the Properties Student Activity Book. (Please see PDF) Have the students draw objects on top or bottom of the water to show which objects sank or floated.After students are done drawing their objects, have them work on the next page of the activity sheet for Learning Experience #7 in the Properties Student Activity Book. (Please see PDF) Students will circle the objects that floated in red and circle the objects that did not float in blue.

Discussion Questions:

What does sink mean?

What does float mean?

How can you tell if something will sink or float?

How many objects sank?

How many objects floated?

Extension:

Ask students to bring in small objects from home. Predict and test the object for sinking or floating. Do not use objects that will be damaged by water.

For the accompanying Properties Student Activity Book, please refer to the PDF found here. (Please see PDF)

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