Sink or Float
|Grade Level: Kindergarten||Grouping: Whole class|
|Objectives: Observe and classify objects that float or sink||Life Skills: Observing|
|Time: Varying||Vocabulary: sink, float|
Stimulate the children's thinking by having them to first
give their prior knowledge about things that sink and float.
Small plastic baggies, several small tubs filled with
water (as needed), corks, pencils, paper clips, crayons, twigs of wood,
marbles, plastic spoons, several bars of soap and a record sheet for each
Give each group a record sheet and a tub of water (try not to have more than three children in each group). Then give each group a small baggie filled with a cork, pencil, paper clip, crayon, twig or wood, marble, plastic spoon and a bar of soap. Ask the students to make predictions of which items that they think will sink and which items that they think will float.
During the experiment and record portion, have the students
in the science groups to take turns dropping each object into their container
of water. Ask them to observe what happens. Instruct them to complete the Sink
or Float Record Sheet.
Have the students to discuss as a total class why certain things sunk while
other did not.
Have students open their Field Notes and record what happened during the experiment.
Ask Earl a question about sinking and floating, then play Sing or Float at Nick Jr.
Have the students to design and create a vehicle that floats. Inform them to use materials that they can find around their homes. All designs are to be brought back to school to be explained and tested.
Give each student a worksheet with pictures of each of the experiment items. Have them to cut and paste them correctly on individual science posters labeled "Sink or Float".
Extension: Story Tree
Take the students to visit a local pond. Observe the pond life that dwells on top of the water and that that dwells on the bottom. Students will complete a Pond Life Record of Field Trip.
Boardman, Christine. Better Than Book Reports.
Scholastic: New York. 1992.