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OSMOSIS WHITE PAPERXI SCIENCE 7 SMAN 1 CIBADAK
“Osmosis is the spontaneous net movement of solvent molecules through a semi-permiable membrane from a solute with high water concentration to a solute with low water concentration that tends to equalize the solute concentration on the two sides.”
HOW TO DO OSMOSIS
WHITE PAPER
Ingredients & Materials
A potato A knife
2 teaspoon of milk a thick sweet
Water A plastic bowl A teaspoon
A stick
1. Prepare all ingredients and materials.2. Peel the potato and cut top section like a
shutter.3. Slice out the flesh of potato use teaspoon
like a bowl.4. Prepare the water and pour into the plastic
bowl.5. Put the milk into potato.6. Skew the potato use a stick at the hole
side.7. Put the potato and milk into water in
plastic bowl.8. Wait until 20 – 30 minutes.
Steps
Tips
1. Use potato that nice and big.2. You can add dye into milk to
know when the water was moved.
3. Don’t slice the flesh of potato too thick and thin.
4. No need to use too big plastic bowl.
Water molecules move to milk in potato with low water concentration from water in plastic bowl with high water concentration.
THANK YOUAnnisa Firdaus
Firyal Iftikhar CikalkinantyNadia Nursalma