Science Experiments

all but 1...the 1 yu want tu test.

a controlled experiment must have only one manipulated variable becuase if the experiment had multiple manipulated variables then it would not be a controlled experiment anymore it would be a manipulated Deseret experiment

An egg is a cell, and so water would move from the container of water to inside the egg by a process called osmosis. This is because osmosis involves the movement of water from a high water potential to low water potential until equilibrium is achieved.

It means identifying things that went wrong, things tha went right, things that could be improved and thinking about whether it was a fair test or not.

yes

Water is a solvent that is generally fat-insoluble. Fats are hydrophobic molecules, meaning they do not mix well with water. Therefore, fats are typically soluble in nonpolar solvents like ether, chloroform, or hexane.

They're twins :|

in dependent variable

Discrepant event, involves an experiment in which there is an unexpected result. Can therefore be used to confront learners with evidence that contradicts their wrong perceptions.

Scientists are proud and sure of their work for this reason: their independently performed experiments can be reproduced, with the same results obtained, anywhere in the Universe.

Pick a science. A chemistry lab procedure will plate the inside of a test-tube with silver, making a mirror ; or winding strands of newly synthesized nylon around a (glass) stirring rod.

Filtration can clean muddy water by passing it through a physical barrier, like a filter, which traps particles such as dirt and debris. As the water flows through the filter, the particles are removed, resulting in clearer and cleaner water on the other side. This process helps separate the solids from the liquid, improving the water's quality.

-- Change the amount of gas you pump into the tank. The total cost responds.

-- Change the length of time that you turn on all the lights in your house

each day. The bottom number on your electric bill responds.

-- Change the depth to which you push the gas pedal when you drive.

The total time it takes you to get where you're going responds, slightly.

Depens on the project,but u need the Title,Question,Hypothesis,Data,Conclusion,Procedure,Materials,and a display of the items. Hope this helped.

explain function below in sharing with full control?

A controlled variable is the part of an experiment has to remain constant throughout the entire time.

Example: Heating a cup of water to dissolve sugar. The temperature would change time to time, but the CONTROLLED variable would have to be the type of sugar and consistency of stirring.

about 13 p each but would be cheaper if bought together

A good last minute science fair project for a 7th grader would be to make a volcano. Use vinegar and baking soda to put in the crater. This will bubble up and make it look like lava and smoke is coming out of the volcano.

If plant growth changes with the different types of light, the presence if music or the different brands of water. Got me an A. Good luck!

You write what you observe. So if you see bubbles of gas, but you know it is hydrogen, you just say bubbles of gas because you cannot make sure it is hydrogen just by looking at it. Or if you heat copper and it goes black and turns into copper oxide, you just say "turns black"

Red.

The colour of an object is determined by the wavelengths of light it reflects and absorbs, and a white object is one that reflects light across the visible spectrum. If only red light shines on it, it will reflect that light. In contrast, a black object appears black because it doesn't reflect any visible wavelengths, so would still appear black. Any object that doesn't reflect the wavelength of light you're using (eg blue objects) would also appear black because it isn't reflecting any light.

You could test the amount of friction of different surfaces by rolling something across them, and seeing which time it went the fastest, and which time it went the slowest.

During a car crash test, various forces act on the vehicle and its occupants. These forces include inertia, impact force, friction, and deformation forces. Inertia resists changes in motion, impact force is caused by the collision itself, friction between the vehicle and the road, and deformation forces occur as the vehicle structure crumples upon impact.

The focal length will be greater in a thin convex lens compared to a thick convex lens. Thinner lenses have less curvature, causing light rays to converge more gradually and thus increasing the focal length.

yes...along with a chart or table too