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Ji Eun Y

Exercise 3: Limits to Plant Growth : ICE - 0 views

  • if one or more of these factors is very low, then often plant growth is limited, or even halted
  • The three main factors that influence plant growth are temperature, the availability of water, and sunlight
Ben K

Plant-Soil Interactions: Nutrient Uptake | Learn Science at Scitable - 0 views

  • Plant growth and development largely depend on the combination and concentration of mineral nutrients available in the soil.
Fleur vdM

Why Plants Need Water : Extension : Clemson University : South Carolina - 0 views

  • Water typically makes up 80 – 95% of the mass of growing plant tissues.
  • Growth is dramatically affected by the timing and amount of water applied during production.
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    Great highlighting here Fleur. This information will be important for you to consider when developing your treatments.
Wiktor F

Potato Batteries: How to Turn Produce into Veggie Power! - 0 views

  • you can actually turn fruits and vegetables into electric power sources
  • In this science project, you will learn about the basics of battery science and use potatoes to make a simple battery to power a small light and a buzzer.
Manami K

Precision Nutrition » Informal Experiments: How do pH strips work? - 0 views

  • pH strips are pieces of paper that change color depending on the pH – the acidity or alkalinity – of a liquid. 
  • common pH strips are designed to test urine, water and saliva.
  • There are a variety of pH strips available. They differ by sensitivity and what range of pH they are designed for. The more sensitive the pH strip, the smaller the range in which it works.
Manami K

How Does PH Paper Work? | eHow - 0 views

  • pH is. The term stands for potential hydrogen
  • Substance
  • This pH paper changes color in different pH solutions because of the chemical flavin, which is a pigment present in red cabbage.
Isolde G

Re: What is in Coca Cola that cleans pennies so quick and well??? - 0 views

  • Briefly, the phosphoric acid in the Coca-Cola removes the oxide coat and leaves the metal fresh and shiny.
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    Isolde this looks like information that will help you decide on how you will develop your treatments for this project.
Emily S

What Are Taste Buds? - 0 views

  • See all those bumps? Those are called papillae (say: puh-PILL-ee), and most of them contain taste buds. Taste buds have very sensitive microscopic hairs called microvilli (say: mye-kro-VILL-eye). Those tiny hairs send messages to the brain about how something tastes, so you know if it's sweet, sour, bitter, or salty.
Jihyeon K

Choosing the Best Flat Roof Materials - What to Consider | DoItYourself.com - 0 views

  • The life span of an aluminum roof is up there with other roofing types lasting up to 35 years.
  • The life span of a built-up roof is not very long, from 5 to 20
  • oll roofing, which has a life span of 5 to 15 years,
    • Jihyeon K
       
      Roof life spans. Very useful to design alter
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  • The best choices for a flat roof are roofing materials that are truly waterproof: metal and built-up roofing. You can also use roll roofing, but is generally just used for shallow sloped roofs, not flat.
    • Jihyeon K
       
      Best type of roofs
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    Materials of Roof
Solomon Senrick

Drag Racing in the Water - 0 views

  • e. The word biomimetic is derived from bios, meaning "life," and mimesis, meaning "to imitate." One example of biomimetics that many of us are familiar with is Velcro®. Velcro was developed in 1941 by George de Mestral. After coming home from a trip with his dog, he noticed burrs sticking to him and to his dog's fur. He looked at the burrs under a microscope and noticed that the tips of the burrs were curved. These curved tips caught anything that had tiny loops, including clothing and fur. After a few years of research, de Mestral developed Velcro. Velcro consists of two strips of nylon, one with loops and the other with hooks.
Lucas Gabrovic

SIRS Discoverer ® : Document : How Does Yeast Make Bread Rise? - 0 views

  • Each individual yeast creature is a tiny, one-celled organism invisible without a microscope
  • When yeast is added to bread dough, it begins to gobble up sugar. The yeast cells use the sugar for energy, as we use food. They leave two main waste products in the dough when they are done with the sugar: One is alcohol, the other is a gas called carbon dioxide.
  •  Carbon dioxide is the gas that makes soda pop bubbly, and it's equally good at making bread dough puff up. Bubbles of carbon dioxide gas form throughout the dough. Wet dough has a webby texture, and the gas bubbles get caught in this web.
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  •  So as the yeast feast and release carbon dioxide, the dough swells and swells, like a balloon filling with air.
  • It rises even more as the gas bubbles expand in the heat of an oven.
  •  What happens to the alcohol? As the bread cooks, the alcohol vaporizes.
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    Yeast background for science fair
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    Yeast background for science fair
Franek C.

Seed Germination Tests by The Gardene'rs Network - 1 views

  • Germination rates are simply the percentage of seedlings that sprout.
  • Ideally, you should test 10 to 20 seeds
  • Plant some seed in a pot. Make sure to record how many you are testing. Add water to moisten the soil. Place pots in a warm location in your house or on germination mats. After they sprout, count the seeds that sprouted and calculate the percentage that sprouted of the total.
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    This article is about seed germination tests. It shows two ways how to test the percentage of the seeds that germinated.
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