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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
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