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Science Experiments
Experiments often conducted by students to test different scientific theories and hypotheses
11,111 Questions
Organism that obtains its food from other organisms?
An organism that obtains its food from other organisms is known as heterotrophic. Autotrophic organisms include green plants, algae and chemobacteria that live in deep water trenches. Without autotrophs- no other life woudl exist.
The real answer is a consumer.
Does a candle emits infrared radiaton?
Yes, a candle emits infrared radiation as a form of heat energy. The flame of a candle produces a mix of visible light, heat, and infrared radiation as it burns.
What do elements combine to form?
Elements combine to form compounds through chemical reactions. These compounds have different properties than their individual elements, resulting in a wide range of substances found in nature and synthesized in laboratories.
The factor that may change in response to the manipulated variable is called the?
controlled variable
Oranges can grow mold better because an orange does not have any preservatives, unlike some bread and stupid idiots..., or cheese. Preservatives help the food not mold or grow fungus. -P.S. I am in 7th grade and i learned about this today in class, i am doing a project on it. Hope it answered your question.
-Oranges can grow mold, as long as mold spores are present. Mold will grow best once the orange begins to decompose (preservatives don't last forever, therefore mold may grow on any decomposing organic matter)
How does campylobacter jejuni appear when cultured on campylobacter agar base?
It depends on which Campylobacter agar base addatives you use - there are many variations. Typically the colonies round or have slightly irregular edges, they are white when small and spread to become transparent later.
No, nylon is not biodegradable. It is a synthetic polymer that is not easily broken down by natural processes, leading to its persistence in the environment. Recycling or repurposing nylon products is a more environmentally-friendly option for disposal.
What does it mean to be biologically related?
Being biologically related means sharing genetic material with another individual, typically through common biological parents or ancestors. This relationship is determined by similarities in DNA sequences and inherited traits that are passed down through generations.
What must be true about a prediction for it to be used?
A prediction must be based on data or evidence, be relevant to the situation or context, and consider uncertainties or limitations in order for it to be used effectively. Predictions that are accurate, timely, and credible are more likely to be used in decision-making processes.
How does Irish moss reproduce?
Chondrus crispus( Irish moss) undergoes an alternation of generation life cycle common in many species of algae . There are two distinct stages: the sexual haploid gametophyte stage and the asexual diploid sporophyte stage. In addition there is a third stage- the carposporophyte, which is formed on the female gametophyte after fertilization. The male and female gametophytes produce gametes which fuse to form a diploid carposporophyte, which forms carpospores, which develops into the sporophyte. The sporophyte then undergoes meiosis to produce haploid tetraspores (which can be male or female) that develop into gametophytes. The three stages (male, female and sporophyte) are difficult to distinguish when they are not fertile; however, the gametophytes often show a blue iridescence
How use of CNG affect the pollution level of the cities?
The use of CNG (compressed natural gas) as a fuel in vehicles can help reduce air pollution in cities. CNG burns cleaner than gasoline or diesel, emitting lower levels of pollutants such as carbon monoxide, nitrogen oxides, and particulate matter. This can lead to improved air quality and reduced health risks associated with pollution exposure.
Isotope can be referred to as the different versions of the SAME ELEMENT. Such as Chlorine has isotopes of Chlorine - 35 and Chlorine - 37. This will just cause the difference in mass numbers because of the difference in neutrons. Chlorine -35 has 17 protons, 17 electrons and 18 neutrons making it to have a mass number of 35 and Chlorine - 37 has 17 protons, 17 electrons and 19 neutrons making it to have a mass number of 39. Some isotopes can be used in normal chemical reactions but some cannot.
What is the use of cork in laboratory?
Cork is commonly used in laboratories for sealing glassware such as flasks and test tubes to prevent spillage or contamination. It is also used to provide a grip for handling hot glassware. Additionally, cork is sometimes used as a material for making laboratory stoppers and insulating surfaces.
What liquid has the most atoms?
That would have to be one of those polysyllabic chemical compounds that is a liquid. It is just a matter of choosing your chemical - perhaps from a chemical laboratory supply catalog.
In terms of density, tetrabromine compounds used in mineral separation approach a density of 3g/ml, but those are toxic, and no doubt not friendly to the ozone layer.
These have been replaced by sodium or lithium polytungstates, which are water soluble. Have a goggle at dense liquids.
In the simplest literal answer to your question, the ocean would answer it.
What the particles in the solid ionine are like?
Assuming iodine is what you are after, as a solid it is a lustrous blue black crystal.
In the gas form it is a purple violet colour.
It is an essential element in diet, and low levels cause enlargement of the Thyroid gland (Goitre), and contributes to mental retardation. It is probably the heaviest element essential in diet. The mother concentrates iodine in breast milk, so perhaps it is needed more in infancy?
Can you give me an investigatory project in the field of applied science with a cheap project cost?
One inexpensive investigatory project could be studying the effectiveness of natural mosquito repellents such as citronella, neem oil, or lavender oil compared to commercial repellents. You can set up simple experiments to test their repellent properties and effectiveness in repelling mosquitoes. This project can be done at home using basic materials and would be a practical application of applied science.
What does the leaf part of a plant do?
what does a leaf do on a plant
- Respiration: It draws in outside air for its CO2 content, expires O2
- Photosynthesis: Where Co2 is converted into sugar.
- Excretes excess water.
- Produces toxins to ward off herbivores.
What is the chemical formula for lithium oxygen?
Lithium peroxide's chemical formula is Li2O2. This compound is typically used in spacecrafts to remove CO2 from the air.
In mass spectrometry why do you have to convert the solid sample into vapor state?
Converting the solid sample into vapor state is crucial in mass spectrometry to generate ions for analysis. The gaseous ions produced from the vaporized sample can be manipulated, separated, and detected by the mass spectrometer. This process allows for the determination of the mass-to-charge ratio of the ions, which provides valuable information about the sample composition.
Most shallow focus earthquakes are found along?
Most shallow focus earthquakes are found along tectonic plate boundaries, specifically at subduction zones where one plate is being forced beneath another. This type of interaction can cause a sudden release of energy, resulting in a shallow-focus earthquake. Other common locations for shallow focus earthquakes include transform boundaries and continental rift zones.
What is the chemical composition of phenyl?
Phenyl, or Carbolic Acid has a composition of C6H5HO, or C6H6O. that is according to the following website, as of 4th November 2008 http://www.henriettesherbal.com/eclectic/potter-comp/carbolic-acid.html :)
How can crystles be growen out of just borax and boiling water?
Crystals can be grown from borax and boiling water by creating a supersaturated solution of borax in the water. As the solution cools, borax particles start to come together and form crystals. By allowing the solution to sit undisturbed for a period of time, large borax crystals will begin to grow.
What did Galileo Galilei discover and when?
Galileo is famous for inventing the thermometer, perfecting the telescope, and for experimenting with gravity. No, galileo did not discover astronomy. But he sure did discover the four moons that revolve jupiter.
