PlantingScience+Power+of+Sunlight+Investigation



bbbbb The purpose of this Wiki page is to provide an additional support for students who are completing the PlantingScience Power of Sunlight Investigation at GNA High School. (This page is a work in progress so please check back often for updates!) dd Please visit the PlantingScience Website at [|www.plantingscience.org]. Be sure to click on the Research Gallery! xxxxds d ssss sss (These activites serve as the lab's introduction.) ddd media type="custom" key="8474006" align="center"
 * __ Staging Activities __**

1. We will go over the introductory PowerPoint above, and you will write a response to the question on the last slide in your Science Journal. We will discuss everyone's answers together as a class.

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 * __Immersion Activities __**

(In this part of the lab, you will learn background knowlegde and techniques that will help you to design and carry out your own, unique experiment with your team.)

1. You will be a participant in our own class "Tour de Plants."



With a partner, you will visit each lab table, observing the two plants there. In your journal, answer the following questions for each plant: (1) Write the number on the label of each plant. (2) What does the plant look like? (Color, texture/feel, thickness of leaves, are there flowers, etc.) (3) Do you think the way the plant looks affects its ability to do photosynthesis? We will take some time to discuss everyone's observations as a whole group at the end of class.

2. Teams will look at "impressions" of plant stomata under the microscopes. You will paint leaves with clear nail polish, filling in leaves' stomatal openings and the grooves on their surfaces. Next, you will place transparent tape over the polished leaf, carefully peel off the tape, place the tape (sticky-side-up)on a glass slide, and view the tape under the compound microscope.

You will be making impressions of a spinach leaf as well as another leaf (your pick!) from a plant in our classroom. Draw pictures of what you observe in your lab journal: the leaf impressions at 4x's, 10x's, and 40x's. Answer the following questions in your lab journal: What are stomata? Where are they located? What is their function (what do they do for the plant)? We will discuss all teams' answers together as a class.

Below, the video on the left goes through an example of another teacher's stomata lab- it includes great pictures and explanations. The video on the right is an **awesome** music video called, "Is This The Way To The Stomata?"

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3. We will go over a quick review of the chemical property of pH. Together as a class, we will discuss different types of indicators for pH, including phenol red, red and blue litmus paper, and pH strips (Type CF).

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You will have the opportunity to test if your cells are undergoing cell respiration by blowing bubbles with a straw into a solution of phenol red and distilled water. In this case, a color change from red to yellow should be produced, since you are creating carbonic acid by blowing carbon dioxide into the water.

Similarly, you will test if a plant is photosynthesizing by placing plant tissue in a solution of phenol red and distilled water (which has been turned yellow by blowing CO <span style="font-family: Arial,Helvetica,sans-serif; font-size: 110%; vertical-align: sub;">2 <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%;"> bubbles into it). This time, the yellow solution should turn red, since carbon dioxide is being used up by the plant and oxygen is being produced.

<span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%;">The video below provides a **//fabulous//** summary of acids, bases, the pH scale, and pH indicators.

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<span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%;">4. You will learn the leaf disk infiltration protocol for investigating photosynthesis.

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<span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%;">Here is a short video on the procedure for sinking leaf disks in a vacuum using a needle-less syringe. dds dddd <span style="color: #ffffff; font-family: Arial,Helvetica,sans-serif; font-size: 130%;">media type="custom" key="8474040" dddd <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%;">The author of the video above, Brad Williamson, has more great information on his website: <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%;">The Floating Leaf Disk Assay for Investigating Photosynthesis sds ddd <span style="color: #ffffff; font-family: Arial,Helvetica,sans-serif; font-size: 130%;">Student teams

dd <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%;">Here is a list of materials we have available to use during your experiments. If you think of any other materials you'd like to use, just ask! This list is not all-inclusive; we can definitely add things to it.



<span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%;">While you are designing and carrying out your experiments, use these PlantingScience pages: dd <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%;">Investigating Plants Safely <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%;">Thinking and Working Like a Scientist <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%;">Keeping a Science Journal  <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%;">Designing Experiments  <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%;">Collecting Data  <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%;">Guide to Using a Spreadsheet  <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%;">Making Meaningful Graphs dddd gggg ggg **__<span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%;">Consequential Tasks __** dd  <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%;">Student teams will be required to create a research poster and a creative project at the end of this lab activity. You can download the creative project options and rubric below.

<span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%; line-height: 0px; overflow: hidden;"> <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%; line-height: 0px; overflow: hidden;"> dddd ddd ddaaaa <span style="color: #ffffff; font-family: Arial,Helvetica,sans-serif; font-size: 130%; line-height: 0px; overflow: hidden;">dd <span style="color: #ffffff; font-family: Arial,Helvetica,sans-serif; font-size: 130%; line-height: 0px; overflow: hidden;">aaaddd <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%; line-height: 0px; overflow: hidden;"> If you'd like to refresh your memory on photosynthesis and cellular respiration, here are our class notes: Photosynthesis Notes and Cellular Respiration Notes dd If you have questions about photosynthesis, visit the @Help With Photosynthesis﻿﻿ page of this Wiki, which contains helpful music videos and links that explain the whole process. There are also lots of great resources on the Science Links page for both photosynthesis and cellular respiration. (Scroll down towards the bottom of the page.) dddd dd ffff

dd <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%; line-height: 0px; overflow: hidden;">Many thanks to the following institutions for making this inquiry-based project possible at GNA:   ddddddd  <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%; line-height: 0px; overflow: hidden;">

<span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%; line-height: 0px; overflow: hidden;">If you have any questions, comments, or suggestions regarding this Wiki page, please email me at: <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%; line-height: 0px; overflow: hidden;">schraedera@gnasd.com