Unit 2:Plants

Essential Questions How do plants obtain water and nutrients needed for survival? How do plants obtain water and nutrients needed for survival? How do plants minimize water loss through their leaves? How do plants minimize water loss through their leaves? What is photosynthesis and how is it accomplished? What is photosynthesis and how is it accomplished? What factors affect the rate of photosynthesis? What factors affect the rate of photosynthesis?

Day 1: Mineral and Water Uptake by Plants Required Readings: Required Readings: 2.22, , 2.27 Learning Objectives: Learning Objectives: To know that plants require minerals and what their functions are To know that plants require minerals and what their functions are To understand that water can enter and leave cells by osmosis To understand that water can enter and leave cells by osmosis To understand that dissolved substances may enter and leave cells by diffusion and active transport To understand that dissolved substances may enter and leave cells by diffusion and active transport

Starter Read the “Mineral Nutrients” information Read the “Mineral Nutrients” information Choose 5 minerals and explain why they are important for plant growth and development. Choose 5 minerals and explain why they are important for plant growth and development. Time: 15 minutes Time: 15 minutes

Activity 1 Design an experiment that would test how different mineral deficiencies affect the growth of a plant Design an experiment that would test how different mineral deficiencies affect the growth of a plant Include: Include: Question – what are you testing? Question – what are you testing? Variables & control Variables & control Method and materials Method and materials Expected outcomes Expected outcomes Time: 20 minutes Time: 20 minutes

Activity 2 How do fertilizers have a negative effect on the environment? How do fertilizers have a negative effect on the environment? Research the various ways that fertilizers can be harmful to the environment and the other organisms that can be effected (with a partner). Research the various ways that fertilizers can be harmful to the environment and the other organisms that can be effected (with a partner). Write a 1-2 page paper on the harms fertilizers can cause Write a 1-2 page paper on the harms fertilizers can cause Due: September 24 Due: September 24 Time: 30 minutes Time: 30 minutes

Activity 3 Draw a picture (on paper provided) to show how water and minerals (ions) are taken into a plant. Draw a picture (on paper provided) to show how water and minerals (ions) are taken into a plant. Include: Include: What processes are occurring? (What mode of transport? There are 3 different ones occurring.) What processes are occurring? (What mode of transport? There are 3 different ones occurring.) The structures needed in order for this to happen The structures needed in order for this to happen How does the shape of these structures allow the transport of water to occur? How does the shape of these structures allow the transport of water to occur? Time: 20 minutes Time: 20 minutes

Closing and Homework Discuss the following questions: Discuss the following questions: Why would farmers drain fields that are susceptible to flooding? Why would farmers drain fields that are susceptible to flooding? Why would farmers cover their fields with black polythene? Why would they not cover it with white polythene? Why would farmers cover their fields with black polythene? Why would they not cover it with white polythene? Homework: Homework: Fertilizer paper (September 24) Fertilizer paper (September 24)

Day 2 Required Readings: Required Readings: Learning Objectives: Learning Objectives: To appreciate that water and dissolved substances are transported around the plant in specialized transport tissues To appreciate that water and dissolved substances are transported around the plant in specialized transport tissues

Starter Look at the microscope slides in the back of the conducting tissues Look at the microscope slides in the back of the conducting tissues Draw a picture of what you see Draw a picture of what you see How do these structures accomplish water and mineral transport? How do these structures accomplish water and mineral transport? Time: 20 minutes Time: 20 minutes

Activity 1 Create a slide of a piece of celery to view under the microscope Create a slide of a piece of celery to view under the microscope The celery needs to be thinly sliced The celery needs to be thinly sliced Draw a diagram of what you see Draw a diagram of what you see Time: 20 minutes Time: 20 minutes

Activity 2 Look at the picture of the potato plant. Look at the picture of the potato plant. What is a source and what is a sink in plants? What is a source and what is a sink in plants? How can a potato be both? How can a potato be both? Time: 15 minutes Time: 15 minutes

Activity 3 Create a concept map to show how various materials are transported from the roots to the leaves of a plant. Create a concept map to show how various materials are transported from the roots to the leaves of a plant. You may include diagrams/pictures as well You may include diagrams/pictures as well Time: 25 minutes Time: 25 minutes

Closing and Homework Discuss the following questions: Discuss the following questions: What are the two vascular tissues in flowering plants and what is their job? What are the two vascular tissues in flowering plants and what is their job? Why does the direction of sugar transport vary from season to season? Why does the direction of sugar transport vary from season to season? Why must sugar be transported to sinks? Why must sugar be transported to sinks? Homework: Homework: Fertilizer paper (September 24) Fertilizer paper (September 24)