May the Light be with you By Kenadi Browne The effects of different artificial and natural light on the height of plants. “The plant’s too tall—it’s going to burn!” Keep this page simple. This is your first page for your presentation.

About Me I like chemistry and biology Catastrophic events presentation Economic botanist Plant and people relationship Remember that you should have simple bulleted list or picture to help “show” you audience who you are. DO NOT write an autobiography on this slide.

Scientific Background Similar to Biology Focused on Botany Julius von Sachs—German botanist Again, don’t write a paragraph on this slide. A few bullets and pictures to “show” your audience who you are talking about.

Introduction How do different types of artificial and natural light affect the height of a plant? If 5 different kinds of light are used to grow plants then the plants will grow best in sunlight, then grow light, then LED light, then black light, then no light because sunlight has the best spectrum of light for plant growth. Have your entire question and hypothesis on this slide, but summarize your reasoning. You want to talk about it, not have students read it while you talk.

Materials 5 tomato plants Black light bulb, grow light bulb, LED light bulb 5 boxes/large containers (to contain plants) 4 covers for blocking light Measuring tape or meter stick Access to power (for lights) Access to water Compost and/or soil 4 plant cages List with a quantity. When you present this you will just touch on key materials, but don’t read all of them to us.

Materials

The Process Five plants in boxes, three connected to power 200 mL/ water on first day, 100 mL after Mimic sunlight patterns Repeated for 13 days Measured plants every 3 days DO NOT copy your entire procedure. Give us a brief idea how you did this and include mostly photo’s or video instead of typed words. You can explain your photos or just narrate your video.

Plants and lights Grow Light LED Light

Plants and lights No Light Black Light

Plants and lights Sunlight

Plants and lights “The plant’s too tall—it’s going to burn!”

Measuring plants

What did you control? MV: Type of Light RV: Plant Height Time light is on Type of soil Type of plant (tomato) Amount of water given to plants MV: Type of Light RV: Plant Height Type a list and talk about why these things were important to keep constant.

Data Table Five Types of Light Vs. Height of Plants Over Time 19.5 14 Type of Light Day 1 (height in cm) Day 4 (height in cm) Day 7 (height in cm) Day 10 (height in cm) Day 13 (height in cm) Overall Change (in cm) Sunlight 15.5 25 29 33.5 35 19.5 Black light 20 30.5 32.5 34 14 LED light 19 27 42 49.5 Grow light 51.5 32 No light 14.5 23 25.5 26.5 12 Only your data should be on this page. Don’t read us your numbers. Point out any erroneous data that might have messed up your results.

Graph Five Types of Light Vs. Height of Plants Over Time Explain what the data means. Are there any trends in your graph that you need to point out. Could any errors have factored into your results?

Results Grow light = greatest effect No light = least effect Possible heat effect—grow light and black light, maybe LED

Conclusion Type of light does affect plant growth Hypothesis mostly supported Overall Growth: 19.5 (sun), 14 (black), 30.5 (LED), 32 (grow), 12 (no) Because of light spectrums—red, blue, green spectrums Have a timed light How does density of soil affect plant growth? This is the most important part of your presentation. It should be clear and to the point. Avoid using the words I was wrong, or I was right. Always refer back to your original hypothesis. RAPPIN should be used as a guide, but don’t keep to that rigid format.

Bibliography Cullen, Katherine. "botany." Science Online. Facts On File, Inc. Web. 30 Apr. 2013. <http://www.fofweb.com/activelink2.asp?ItemID=WE40&SID=5&iPin=ELS0037& SingleRecord=True>. Hodgkiss , R. J. "About Light and Lighting." The Succulent Plant Page. 20 Feb 2012. Web. 27 May 2013. <http://www.succulent-plant.com/light.html>. Julius von Sachs. Photograph. Images from the History of Medicine. Web. 26 May 2013. <http://ihm.nlm.nih.gov/luna/servlet/detail/NLMNLM~1~1~101427908~187841: Julius-von- Sachs?qvq=w4s:/what/Portraits;lc:NLMNLM~1~1&mi=5252&trs=25653>. Oakes, Elizabeth H. "Von Sachs, Julius." Science Online. Facts On File, Inc. Web. 30 Apr. 2013. <http://www.fofweb.com/activelink2.asp?ItemID=WE40&SID=5&iPin=EWSR0898 &SingleRecord=True>. Wilkes, Garrison. "On Becoming an Economic Botanist." Botanical Society of America. Web. 2 May 2013. <http://www.botany.org/bsa/careers/economic_botanist.php>.

Acknowledgements My dad My sister Always finish your presentation by saying “thank you.”