Class III A

“George Cosbuc” School

Baia Mare, Romania

• if you remove the peel sink. Apple and lemon floating

Explanation:       Small holes in the lemon peel contain air bubbles that are floating possible. Removal of the shell leads to diving.

Materials: • lemon • a glass bowl• water

Same experience, but with an apple

Apple shelled not sink Apple floats, not peeled lemon

Materials: • Lemon • Apple • a glass bowl• water

• Materials: • White Carnation • red ink, green, blue • scissors • glass vase/ tubes

• - tubes filled with water being added to every tube of a different color ink - strain Carnation caring cut in two parts until surrendered flowers. - Each half of the stem is inserted into a tube with colored water. After several hours the flowers begin to color.

After several hours

Materials: salt, colored ink, water, small saucers

Plants need water