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Science Experiments

Experiments often conducted by students to test different scientific theories and hypotheses

11,111 Questions

Which highlighter colors make glowing water?

To make water appear to glow, fluorescent highlighter colors like neon yellow, green, or pink work best. The fluorescent dye in these colors emits a bright glow under UV light, creating the effect of glowing water. Remember to use caution and handle highlighter dyes with care when using them for this purpose.

What variable do you purposely change during an experiment in order to test your hypothesis?

The variable that is purposely changed during an experiment to test a hypothesis is the independent variable. This variable is manipulated by the researcher to see how it affects the dependent variable, which is the outcome being measured.

Why does boiling syrup produce more severe burn?

Boiling syrup can cause severe burns because the high temperatures can cause the syrup to stick to the skin, leading to prolonged contact and more significant heat transfer. The high sugar content in syrup can also lead to caramelization, which can further increase the temperature and severity of the burn.

What would happen if two objects fell at the same time with no air resistance?

If two objects on the same planet are dropped from the same place at the same time

and there is no air resistance, they fall with the same acceleration, and they hit the

ground at the same time with the same speed. Their size, mass, weight, temperature,

color, political affiliation, race, creed, or sexual orientation make no difference.

What is maximum wavelength for cibacron Yellow FN2R dye?

The maximum wavelength for cibacron Yellow FN2R dye is typically around 420-430 nm.

Fusion is the ultimate solution to your energy problem why?

Fusion releases a lot amount of energy, much more than the traditional methods of obtaining energy, most of which are polluting and non-renewable. Thus, fusion is the ultimate solution to our energy problem.

A2: If fusion can be made to work, it will use deuterium (heavy water) which can be extracted from natural water and therefore is an almost inexhaustible source.

Which is a correct description of the organization of subatomic particles in atoms?

Subatomic particles are organized within the atom in the nucleus, which contains protons and neutrons, and in electron shells surrounding the nucleus where electrons are found. Protons have a positive charge, neutrons have no charge, and electrons have a negative charge. The number of protons determines the element, while the number of electrons determines the atom's overall charge.

What is the order of a mushroom?

The order of a mushroom refers to its taxonomic classification between class and family. Some common mushroom orders include Agaricales (includes gilled mushrooms like button mushrooms), Boletales (includes boletes), and Polyporales (includes polypores).

Why a controlled experiment might be impossible?

A controlled experiment might be impossible if there are too many variables that cannot be controlled or if it is unethical or impractical to manipulate certain variables. Additionally, external factors outside of the researchers' control can also make it difficult to ensure a controlled environment for the experiment.

Do experiments show cause-and-effect relationship?

Yes, experiments are designed to establish cause-and-effect relationships by manipulating one variable (independent variable) and observing the effects on another variable (dependent variable) while controlling for other potential influences. This allows researchers to draw conclusions about the impact of the independent variable on the dependent variable.

Can you become magnetic if you have too much iron in your blood?

No, and this should NOT be attempted. You would suffer from acute iron poisoning before you managed to get enough iron in your blood for your body to obtain and maintain any detectable magnetic charge. The first symptoms will be stomach pain, cramping and vomiting as the iron will cause your stomach lining to become ulcerated. After about a day, the iron will move deeper into your body, damaging your brain and liver and possibly a condition known as metabolic acidosis, where there is basically too much acidity in your body due to increased acid production or if your kidneys stop functioning properly. If left untreated, you would die most likely of liver failure.

What is each water molecule made of?

One water molecule is made up of two hydrogen atoms and one oxegen atom. The scientific term for water is H2O. The H stands for hyrogen. The 2 stands for 2. That means two hydrogren atoms. And the O stands for oxegen. Because there is only one oxegen atom.

When liquid water is heated most of the energy that the water initially absorbs is used to raise the temperature of the water or break hydrogen bonds?

Yes, when liquid water is heated, the majority of the energy goes into increasing the temperature of the water molecules. However, a portion of the energy is also used to break the hydrogen bonds holding the water molecules together before all of the water molecules can reach a higher energy state and transition into the gaseous phase.

Weather for each season for tundra and graph temperature and prccipitation chanes?

Tundra regions experience long, cold winters with temperatures often below freezing. Summers are short and cool, with temperatures rarely exceeding 50°F. Precipitation in the tundra is generally low, but varies depending on the specific location.

Graphs depicting temperature and precipitation changes in tundra regions would typically show a significant drop in temperature during winter months, followed by a slight increase in summer. Precipitation levels would generally show a consistent low level throughout the year, with occasional fluctuations.

Investigate the factors that determine the force of friction between a wooden block and the surface on which it is resting?

The force of friction between a wooden block and a surface is determined by the nature of the surfaces (roughness, texture), the normal force pressing them together, and the coefficient of friction between the two materials. Additionally, factors such as temperature, the presence of lubricants, and any other substances on the surfaces can also influence the force of friction.

Is neptunium an artificial metal?

Yes, neptunium is a synthetic element, which means it is not found naturally on Earth and must be created in a laboratory. It was first synthesized in 1940 by a team of scientists at the University of California, Berkeley.

How long does it take fresh water to evaporate?

The time it takes for fresh water to evaporate depends on various factors such as temperature, humidity, surface area, and air movement. Generally, it can take a few days to a couple of weeks for a small container of fresh water to completely evaporate at room temperature.

Is there a pattern that describes the path of light during refraction?

Yes, Light bends towards the normal when it travels from air to another medium and bends away when going into air from another medium. This can be affected by the angle of incidence and what angle it is.

Why coin sinks in the water?

Becuase the coin is heavier then what the water can hold

What is the scientific definition for solute?

A solute is the substance to be dissolved in a solvent to give a solution.

What will happen to the soil when put in water?

When soil is put in water, it will absorb the water and expand. This can cause the soil to become waterlogged, leading to the displacement of air in the soil pores. Excess water can also affect the soil's nutrient content and ability to support plant growth.

What pieces of equipment are needed to played badmintion?

To play badminton, you will need a racket, shuttlecock, and a net. It is also recommended to wear appropriate footwear with good grip to navigate the court effectively.

Can sidewalk chalk art be preserved and how?

Yes, sidewalk chalk art can be preserved by using a fixative spray or by covering it with a clear coat of varnish. This helps protect the art from smudging or washing away due to rain or foot traffic. Displaying the art indoors or in a protected outdoor area can also help prolong its lifespan.

What does it mean for something to be magnetic?

Something is magnetic if it has the property of attracting or repelling other materials made of certain metals like iron or nickel. This attraction or repulsion is caused by the alignment of the magnetic domains within the material, creating a magnetic field.

What are the 7 diff kinds of electromagnetic waves lowest to highest?

radio waves, microwaves, infrared waves, visible light, ultraviolet waves, x rays, gamma rays