Science Experiments

A good science fair project for a 6th grade level would maybe be something like the following: Does the average speed of a gymnast affect how their vault score?

I'm trying to think of a good 7TH GRADE level gymnastics science fair project. advice?):

"Brownian Motion and how it applies to everything"

That would be a good name. Brownian Motion is the theory that all atoms are

in a constant state of motion.

You could explain how when heat energy is added it changes the physical

characteristic of the chocolate from solid to liquid which happens because

the atoms of the chocolate are moving at a faster rate constantly.

A drug researcher wishes to test a new pain medication for safety and effectiveness in treating the pain associated with arthritis. It is decided to test the drug on a treatment group of 17 severely diabled arthritis sufferers in a hospital ward. For the safety portion of the study, the same drug will be administered at the same time to 17 healthy volunteers from the hospital staff. The experiment will be repeated, with the same experimental design, at a number of other hospitals and outpatient clinics across the country.

Blocking

.Replication

Acids do not have a pH greater than 7. When the pH is greater than 7, this makes it a base.

To clearly state why the experiment was performed

Thesteps to a science expierement include:

1. Introduction

2. Problem

3. Hypothesis

4. Materials

5. Procedure

6.Data

7. Results

8. Conclusion

9. Application

you also are typically asked the three variables which are:

1.Dependent

2.Independent

3.Constant

Table salt = Sodium + Chlorine = Sodium Chloride ( Na) + ( Cl ) = (NaCl)

No a sound wave can't travel through space because in space there is no air and sound waves need a medium to pass though. If you don't know what a medium is, it is something the waves or rays travel through. If you have ever watched a rocket blast off and you couldn't here the rocket make any noise once it left Earth that is why.

If I am understanding the question correctly, I can give a simple explanaiton to the reason for repetition of an experiment. In any good scientific method process, it is the ultimate responsibility that the results of such experimentation can contain the following two factors: RELIABILITY: the ability for any other individual to perform the same experimentation under the same conditions and achieve the same result is critical. VALIDITY: the ability once the reliabilty has been established, the results can be considered without any futher "re-invention of the wheel" valid and no additional testing or experimentation is needed. (REMEMBER-- results are only valid if the same procedure over and over has yeilded the same results under the same conditions.

The energy required to break the interactions between the ionic substances is overcome with higher kinetic energy (warm water). Solids tend to be more soluble as temperature increases.

Limitations in any experiment depends on the topic of research.

If the experiment is related to weather, some uncertainties in the data related to weather condition can be considered as limitation.

Human error in any experiment also cannot be neglected.

A molecular formula shows how many of what kind of atoms are in a molecule of a compound. Water, having two atoms of hydrogen and one atom of oxygen has the molecular formula H2O. Sulfuric acid, with two hydrogen atoms, one sulfur atom, and four oxygen atoms, is written H2SO4.

for the starch iodine test is performed in which the starch reacts with iodine to produce dark blue colour which confirms the presence of starch.

for glucose benedict's and fehling's test is performed.

benedict's test: 1 ml sample is mixed with 1 ml of benedicts solution and the heated upto boiling if the colur changes to brick red then it confirms the presence of glucose

fehling's test: similarly 1 ml fehling's solution I & fehling's solution II each in taken together and to it 1 ml of the sample is takenon then heated uptill boiling. if the colour changes to brick red the it confirms the presence of glucose.

released

Because the surface temperature of the glass gets colder than the dewpoint temperature of the air. Therefore the relative humidity goes over 100% on the glass causing water vapor in the air to condense into liquid water on the glass.

A controlled experiment is one where two similar experiments are run in parallel, differing only in the specific intervention.

A perfect controlled experiment is one where the experimenter does not know which arm is which, so is looking honestly for the outcome rather than looking for confirmation of an expected outcome. This is called blinding.

In medicine, a double-blinded experiment is one where both the experimenter and the subjects are unaware of which arm they are in.

Blinding is important where judgment of the outcome is subjective. An experiment on a pain drug will be highly sujective so blinding is vital; an experiment on an antibiotic may not need blinding as the results could be established by serum counts.

The main function of a controlled experiment is to isolate other variables in complex systems. The most familiar kind is the standard drug trial, where a drug is compared, double-blinded, in a population which is randomised between the intervention and control arms - this is known as a randomised double-blinded controlled trial, and is required for drug approvals.

The control arm may be a placebo (an inert pill), or it maybe the existing treatment. Sometimes multi-arm trials are conducted: new treatment versus current treatment and placebo.

The book "Bad Science" by Ben Goldacre has an excellent overview of controlled trials ad their strengths and weaknesses.

Flame of itself is yellow/white. This is white hot carbon particles. Carbon, per se, does not form ions and so cannot give a flame test colour.

The nonliving parts of an organism's environment are called abiotic factors.

the building block or subunit of DNA and rna is amino acids or it might be nuclic acids( not sure)

one, separated into 3 lobes

a hypothesis for hot ice would depend on the ingredients you use and the temperature

my example would be..... " i boil 1L vinegar and add 4 tsp on baking soda for 30 minutes until a crust forms and then i cool it in the fridge for 40 minutes. then when i touch it it instantly turn into ice".... u could also do the experiment where u use sodium acetate or the one where you use hand warmers.

uhhh. i dont really know, but if this is for a science project, i would say that you write what type of mold developed in what time period and under what cercumstances... so yeah... best wishes on what ever youre doing with bread mold

surfactants which is a chemical that you can wash your stains out

Atoms are included in the group of matter. Atoms are the basic unit that make up all matter. Matter is anything that has mass and takes up space, so an atom, even though these numbers are miniscule, still falls under this category.

The Big Boom :P