Science Experiments

two glucose molecules

"Depends on how much gold and how many feathers you have. "

I believe the riddle is usually "which weighs more - a pound of gold or a pound of feather?" The answer is that they weigh the same amount - they are both a pound. However, one cannot answer your question without further details since we clearly do not know how much of each object we have and how heavy it is.

How long students worked on the math problems (APEX)

You can remove water from a solution of salt and water by using evaporation. Heat the solution, allowing the water to evaporate, leaving behind the salt. Then, collect the water vapor and condense it back into liquid form if you wish to recover the water.

Actually, "regular" soap doesn't kill germs; it simply weakens their bond to your skin by removing skin oil. The mechanical action of lathering, combined with the flushing action of running water, removes gems but it doesn't necessarily kill them. Antibacterial soaps, on the other hand, not only kill the germs on your skin; they may also leave behind residues that continue the antibacterial action for a few hours. They are also sometimes equal because they both remove the same amount of bacteria on your hand. hi im chels and im in 5th grade what i think shes trying to say is that regular soap makes your hands smell clean but it really doesnt kill none but let me ask you this question:does germ-x really kill 99.9 germs? please help me im totally off this subject frank if your out there give me your number i dated you im in 5th remember me and your in 7th

Removes the phosphorous. It makes them very brittle.

Scientist are often confronted by situations in which their results do not turn out expected. Unexpected results often give scientists as much information as expected results do. So, unexpected results are as important as expected results.

A good root system to hold it in place against the current.

A magmatic quake is seismic activity caused by the movement of high pressure magma within the earth's crust. This tends to occur as the pressure within a magma chamber increases which leads to hydraulic fracturing of the surrounding rock mass. This fracturing causes the seismicity or magmatic quake.

This sort of small scale seismic activity near a volcano may indicate that the pressure in the magma chamber that feeds the volcano is increasing and in turn may be a precursor to a volcanic eruption and is something that vulcanologists or geophysicists would be on the look out for!

Typically heat will speed up a chemical reaction because it causes the actual atoms to move quicker and collide with each other causing a chemical reaction. For example a redox reaction where a electron is passed between atoms.

Many things determine a computer's speed. Just about everything inside of your computer (hardware & software) can make a difference. The first and probably most common measurement of speed is the clock-speed of your main CPU. This is measured in Megahertz or Mhz. Quite simply the more the better, and 1000s of Megahertz are measure in Gigahertz or GHz. So 2000 Mhz = 2GHz. Another new development in computer technology has also allowed for multiple cores in a single CPU. This can allow multiple independent processing cores to exist on a single board. With this technology your CPU can processes simultaneous tasks without over-taxing a single CPU. Many other things must be taken into consideration as well though, how much RAM your computer has, how fast your hard drive spins, the size of your hard-drive's main platter, what operating system you have, how many other devices are connected to the computer, how much software you have loaded on to it, etc. The list can literally include everything inside of a computer. A better way to examine the question would be to figure out what task you want to speed up. This could include how fast your computer turns on, how fast it can process multi-media types of data (audio/video), or server level computing for applications, services, and user management. Different hardware and software components affect speed in different ways and sometimes optimizing a computer to perform one specific task can yield better performance results.

An experiment has to have a varible, if it doesn't that it's probably and engineering experiment or robotics. I think its called a "control"

Paper that is blue will turn/stay _____ in the presence of a strong base.

Clouds can form in one of four ways: mountains, the rise of air masses, cold or warm weather fronts, and surface heating. Cumulus clouds form by surface heating or mountains, status forms by weather fronts, and all types can form by the rising of air masses.

Diesel is two different colors that include light yellow and blue. They are different colors so that people can distinguish between the two in order to know what is best for their vehicle. Light yellow is for vehicles that run on the highway while light blue is for marine and agriculture vehicles.

Vega is a bit over twice as massive as our sun. It is also much whiter, and much hotter and more luminous than our sun. It is only about one-tenth the sun's age (500,000 years) but like our sun, it is about at the midpoint of it's life right now.

Assuming there are equal concentrations of salt and sugar in each sample, the sugar water will freeze faster. Salt dissociates into its ions when dissolved, giving two ions for ever salt molecule. Because freezing point depression depends only on concentration, and the concentration of ions is double that of the sugar, sugar will freeze faster.

Only if it is vibrating in an atmosphere or if its vibrations are sensed in an atmosphere.

yes

it has this type of material that can aborb a loy of water.

It could be about 2 to 3 sentences,but it shouldn't be to long.

All seeds are the same. Nothing is different. Although going to Local Garden Store, and buying healthy and ready soil, will help you plant stay healthy. If you want faster and better result on growing plants, you might consider it. Plant it during the summer, (Sun is healthy for all plants, and plenty of water will do). DON'T FORGET THE HEALTHY SOILS! Hope this is helpful. :)

-8th grader.<3

It forces you to formulate what you want to test and so defines the limits of your experiment.

The lid keeps the petri dish from being contaminated, and the basic shape makes them easy to stack and arrange in varied configurations.

All science experiments are performed in a controlled manner which means, there will be a positive control, a negative control and importantly the subject sample(s) who's behavior is not known. The experimental observation must be positive with the positive control sample and negative with the negative control sample, no matter whatever the condition is. Only in this set up the result of a subject (which is the actual unknown experimental sample) would be considered as a faithful result.
Any fault or irregularities of the controls will destroy the authenticity of an experiment.