SEEd - Grade 7
Lesson Plans

Strand 7.3: STRUCTURE AND FUNCTION OF LIFE

Living things are made of smaller structures, which function to meet the needs of survival. The basic structural unit of all living things is the cell. Parts of a cell work together to function as a system. Cells work together and form tissues, organs, and organ systems. Organ systems interact to meet the needs of the organism.

Standard 7.3.2

Develop and use a model to describe the function of a cell in living systems and the way parts of cells contribute to cell function. Emphasize the cell as a system, including the interrelating roles of the nucleus, chloroplasts, mitochondria, cell membrane, and cell wall. (LS1.A)

• Cells at Work
  Students will see how cells respond to changes in osmotic pressure by watching red onion cells shrink in salt water and by weighing potato slices before and after being soaking in salt water.
• Dialysis Tubing Lab
  Students will predict the particle movement and see if they are correct. This can be adjusted to be an inquiry lab.
• Group Organelle Trading Card
  Students will research and then create a trading card about a specific organelle.
• Starch Bags
  In this activity students will predict and test the direction of the particle movement.

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