This was performed by testing the clarity of water in a spectrophometer. ... Since distilled water in slightly basic, it test tube appeared red. ... When placed under a light, the elodea cells were able to photosynthesize and create oxygen, which turned the water back to a reddish color. ... Every five minutes, the test tubes were unwrapped and observations of the color inside the test tubes were recorded. ... If there was to be a quicker rate in photosynthesis in any of the test tubes, then the water in that test tube would be a reddish color. ...

• Word Count: 1002
• Approx Pages: 4
• Grade Level: High School

They are extensively used in making crude oil and are considered good fuels because they burn completely to give carbon dioxide and water. ... This fuctional group when reacted with other substnces changes its color with the pattern, colorless to pale yellow to brown, which means that as time goes by, its color change tends to be deeper. ...

• Word Count: 377
• Approx Pages: 2

In this experiment, different masses of Sodium bicarbonate will be added to distilled water to make different percent concentration solutions, and ultimately provide different amount of CO2 concentration. ... During photosynthesis, chlorophyll containing cells of leaves on plants in the presence of sunlight use carbon dioxide and water to produce carbohydrate and oxygen. ... Chloroplasts are a double membrane organelle and the pigment chlorophyll is the compound that gives the plant that green color (Sutton). ... Sodium bicarbonate used in the lab provides the plant CO2 gas as NaHCO3 breaks do...

• Word Count: 544
• Approx Pages: 2
• Has Bibliography
• Grade Level: Undergraduate

Acids which are not combined with water are dangerous - they change so fast that they can react with skin and cause burns. Bases are bitter, water-soluble substances which are also very useful. ... The solutions they form with water are called basic solutions. ... Other characteristics to watch for when mixing two or more substances are heat and light, flames, explosion, color change, and evolution of gas. ... You need water to help it show. ...

• Word Count: 720
• Approx Pages: 3
• Grade Level: High School

Dehydration is the loss of body water. ... After dehydration, further loss of water from the body causes dizziness, nausea, cramps in the abdomen and feeling of severe thirst. ... To prevent the aeromedical condition make sure to provide enough water to be frequently used when on a long flight. ... In planes detectors that change color in the presence of carbon monoxide alerts the individual. ...

• Word Count: 890
• Approx Pages: 4
• Has Bibliography
• Grade Level: Undergraduate

We repeated the same process for the other tube, which contained only water. Once both tubes showed no leaks we placed a fishbowl full of water between our tubes and a lamp. ... After three-minute intervals we continued to mark each line with a different color marker and then measured the distance from the equilibrium to the second colored lines with a ruler that had millimeter measurements. ...

• Word Count: 874
• Approx Pages: 3
• Grade Level: High School

Generally, lean dough is placed on performed pans with cornmeal and is water-washed; soft or medium dough is placed on sheet pans with parchment or in lightly greased loaf pans and are egg-washed. ... Baking times and temperatures are determined by the type of dough, the size of the unit, the richness of the unit, the desired color of the crusts, and, often, the weather. ...

• Word Count: 691
• Approx Pages: 3
• Grade Level: High School

The reason for its disappearance is that the water that poured into it has been diverted. ... In other cases they have bleached due to higher temperatures vanished the tiny organisms that live in symbiosis with the corals and give them their color. ... This excess methane gas carries more water vapor into the atmosphere and condenses at much higher altitudes than the sun will strike. ... Such is the example given on California, where big amounts of water are being used to irrigate crops. ...

• Word Count: 1670
• Approx Pages: 7
• Grade Level: High School