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Science Experiments
Experiments often conducted by students to test different scientific theories and hypotheses
11,111 Questions
What is an iron stand and iron ring?
It is a laboratory equipment used to hold or support beakers during experiments.
An iron stand is a ventilated metal stand on which a hot flatiron may be rested when not in use.
What is a statement that describes how to measure a particular variable or define a particular term?
operational definition
What must be present in order for clouds to form?
Clouds form when water vapor in the air condenses into tiny droplets or ice crystals around microscopic particles called condensation nuclei. These particles can be dust, pollen, or pollution. Additionally, cooling of the air and reaching saturation point are needed for cloud formation.
What are some good science project ideas?
Maybe:
A Baking soda Rocket
Flower growth project
Purifying water samples
Examining which balloons last longest
or examining which type of battery lasts longest
Also, try doing something that fascinates you. See if you can prove which household cleaner is best, which plant formula is best, which liquid is the most flammable. What ever you like.
A sextant is an instrument used in navigation to measure the angle between a celestial body (like the sun or a star) and the horizon. By determining this angle, along with the time of the measurement, a navigator can use trigonometry to calculate their position on the Earth's surface.
Scientists tools are are test tubes magnifying glass, beakers,and Bunsen burners.
How has Benjamin Franklin's kite experiment influence our lives?
well, because of his kite experience, we now that that lightening and electricity are the same.
a variable is a letter used for a number that is unsolved like a+5=10 a would be 5
What were the nuremburg experiments?
here is a piece from wiki
http://en.wikipedia.org/wiki/Nuremberg_Code
The Nuremberg Code is a set of research ethics principles for human experimentation set as a result of the Subsequent Nuremberg Trials at the end of the Second World War. Specifically, they were in response to the inhumane Nazi human experimentation carried out during the war by individuals such as Dr. Josef Mengele.
Why do you have controls in an experiment?
The controls shows the normal state of affairs, so as to allow a comparison with the experiment results, and to help ascertain that the results obtained were due to the factors tested in the experiment, and not a natural occurence/incidence. Having controls in an experiment can thus be said to validate the experiment itself.
How do I find the volume of a rock?
Irregularly shaped objects have no formula for finding the volume. So, to find the volume of a rock, one method is to measure how much water the rock displaces. You simply need some sort of container that measures the volume of liquids and you need some water. The container should be large enough to put the rock in. First, fill the container to a certain volume, noting what that volume is and making sure that enough water is used to completely cover the rock when you put the rock in the container. Next place the rock into the container and measure the new volume indicated by the water. Subtract this new volume with the old volume, and the answer will be the volume of the rock. Another method is to use the rock's mass and density to calculate the volume. This can be tougher because you might not know what type of rock you have and many rocks are composites of different types of rocks. Some internet websites give the densities of different rocks. The website http://www.earthsci.unimelb.edu.au/ES304/MODULES/GRAV/NOTES/densities.html gives some simple densities. But if you have all this information, the volume can be determined by measuring the mass of the rock and dividing that number by the density.
How do you find the volume of a rock?
place the rock in a large container that is fillec to the brim with water, making sure you know how much water you put in. Place a tray underneath (or something similar) and place the rock in. Wait until the water stops moving, then measure the amount of water on the tray. The amount of water in the tray is the volume of the rock.
E.g. the water in the tray was 20ml, so the volume of the rock is 20cm3.
Scientists use their data to make charts and what to communicate the results of an experiment?
graphs
Application of knowledge learned through science is improvements in technology or new inventions.
How do you build a mousetrap car?
there are lots of different sites on the web that are helpful. I built mine my looking at pictures of ones on google.
An experiment is something like if we don't know if, for example, the result of salt solution. Then we must do it for real to find out the answer. An experiment is not only in the science lab. We can do an experiment everywhere, such as: Our homes, the park,... So that's what a science experiment means. People who haven't done an experiment yet must try some time.
