Egg Osmosis Lab Name: __________________________ Introduction: Cells have an outer covering called the cell membrane. This membrane is selectively permeable; it has tiny pores or holes that allow objects to move across it. The cell membrane controls what moves in an out of the cell. Food and oxygen move into cells across the cell membrane through the process of diffusion. Diffusion is the movement of a substance from an area of high concentration to an area of low concentration. Osmosis is a special type of diffusion it is the diffusion of water across a selectively – permeable membrane. Osmosis occurs when water moves from an area where it is more concentrated to an area where it is less concentrated. We are going to use eggs to observe the process of osmosis. Please complete the following lab report carefully. All parts of this lab will be marked individually. Purpose: To observe how osmosis can affect the mass of an egg after being soaked in various liquids. Materials: 3 raw eggs, shells in tack 300 mL of vinegar x 3 300 mL of tap water, salt water, and corn syrup metric tape a scale marker masking tape Hypothesis: Predict how the egg will respond after each of the following conditions: After being soaked in vinegar for 24 hours: After being soaked in tap water for 24 hours: After being soaked in salt water for 24 hours: being soaked in corn syrup for 24 hours:
Egg Osmosis Lab Name: __________________________ Introduction: Cells have an outer covering called the cell membrane. This membrane is selectively permeable; it has tiny pores or holes that allow objects to move across it. The cell membrane controls what moves in an out of the cell. Food and oxygen move into cells across the cell membrane through the process of diffusion. Diffusion is the movement of a substance from an area of high concentration to an area of low concentration. Osmosis is a special type of diffusion – it is the diffusion of water across a selectively permeable membrane. Osmosis occurs when water moves from an area where it is more concentrated to an area where it is less concentrated. We are going to use eggs to observe the process of osmosis. Please complete the following lab report carefully. All parts of this lab will be marked individually. Purpose: To observe how osmosis can affect the mass of an egg after being soaked in various liquids. Materials: 3 raw eggs, shells in tack 300 mL of vinegar x 3 300 mL of tap water, salt water, and corn syrup metric tape a scale marker masking tape Hypothesis: Predict how the egg will respond after each of the following conditions: After being soaked in vinegar for 24 hours: After being soaked in tap water for 24 hours: After being soaked in salt water for 24 hours: being soaked in corn syrup for 24 hours:
Egg%20Osmosis%20Lab.docx