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Science Experiments
Experiments often conducted by students to test different scientific theories and hypotheses
11,111 Questions
What is the hardness of iron ore?
It depends on the deposit. What deposit are you talking about? What measure of hardness are you after? e.g. UCS, Moh's Hardness Scale e.t.c.
On moh it is 4
Brinnel hardness it is 490
What does nicotine look like under a microscope?
Probably something brown and may have an oily texture to it but honestly, I don't know.
Why solid substances can't be titrated?
Solid substances cannot be easily titrated because they do not readily dissolve in the titrant solution, making it difficult to accurately measure the endpoint of the titration. Additionally, determining the equivalence point can be challenging due to the slow reaction rate between the solid and the titrant solution.
What kind of mineral found in compact disk?
Compact disks are typically made with a layer of polycarbonate plastic for data storage, along with a reflective layer of aluminum to reflect the laser light for reading data. The reflective layer may also have a protective layer of lacquer. These components do not contain specific minerals but are synthetic materials.
What does a mercator map accurately show?
A Mercator map accurately shows the shape and direction of geographic features, making it useful for navigation. It also preserves angles and lines of longitude, making it suitable for sea travel. However, it distorts the size of land masses, particularly near the poles, leading to inaccuracies in their relative proportions.
How are all atoms of the same kind of matter similar?
All atoms of the same kind of matter are similar because they have the same number of protons in their nucleus, giving them the same atomic number. This determines the element to which they belong and establishes their chemical properties. Additionally, atoms of the same element have identical electron configurations in their outermost energy levels.
Alfred Wegener proposed the theory of continental drift in the early 20th century, suggesting that continents were once connected and drifted apart over time. His theory was met with skepticism at the time but laid the foundation for the modern theory of plate tectonics. Wegener's ideas were supported by evidence such as the fit of continental coastlines and the distribution of fossils across continents.
Is tellurium a solid liquid or gas at room temperature?
Tellurium is a solid at room temperature. It melts at 449.51 degrees Celsius (841.12 degrees Fahrenheit) and boils at 988 degrees Celsius (1810 degrees Fahrenheit).
What is the swamp temperature?
The temperature in a swamp can vary depending on location, time of year, and time of day. On average, swamp temperatures can range from 10°C to 30°C (50°F to 86°F) but can fluctuate based on environmental factors.
How does a blizzard dissipate?
A blizzard dissipates when the conditions that sustain it, such as strong winds and heavy snowfall, weaken. This can happen as the storm system moves away, or when warmer air moves into the region, causing the snowfall to decrease and the winds to calm.
What name is given to the study of heavenly bodies?
The study of heavenly bodies is known as astronomy. Astronomers observe and analyze the stars, planets, galaxies, and other celestial objects to better understand their composition, behavior, and interactions.
Is vaseline flammable when used with oxygen therapy in hospital?
Yes, Vaseline is flammable and should not be used with oxygen therapy in a hospital setting. Oxygen supports combustion, and applying Vaseline in oxygen-rich environments can increase the risk of fires. It is important to use oxygen-compatible products in these situations.
How fast does salt dissolve in water?
Salt dissolves in water relatively quickly, with the rate of dissolution depending on factors such as temperature and stirring. In general, table salt can fully dissolve in water within a few minutes if the water is agitated or warm.
How long are hurricane names get used for and does it get used again?
Hurricane names are reused every 6 years unless a particular storm is extremely deadly or costly, in which case the name is retired. Once a name is retired, it is replaced with a new one to avoid confusion and to honor the lives lost in the storm.
Which brand of gum molds the fastest?
The rate at which gum molds depends on various factors such as moisture content, temperature, and ingredients used. Generally, gums with higher moisture content and softer textures may mold faster than drier and harder gums. However, no specific brand can be stated as molding the fastest as results may vary depending on the storage conditions.
Coal does not have a fixed melting point because it undergoes a process called softening before it turns into a liquid. However, coal typically starts to soften and decompose around 400-500 degrees Celsius.
Do plants grow better in the dark or light?
Plants grow taller in the dark. however they are a lot more healthy growing in the light.
This because in the absence of light, cells in plant stems grow rapidly and leaf growth is therefore suppressed. If you take a closer look or let a plant continue to grow in the dark, you may notice thin and weak stems. One may also discover that without light, leaves tend to be small and pale, as they lack the green pigment, chlorophyll, and thus the ability to make food or photosynthesize. Whereas the one in the light slows its growth rate so that it can make leaves to photosynthesize.What is the function of respiration?
Respiration is the process by which organisms take in oxygen and release carbon dioxide. This process generates energy for cellular activities through the breakdown of glucose molecules. The primary function of respiration is to produce ATP, the energy currency of cells, which is required for various metabolic processes.
What happens when you put a soda can with boiling water into a bowl full of room temp water?
The sudden change in temperature can cause the can to implode. As the can cools rapidly, the air inside contracts, creating a vacuum that crushes the can. This happens because the air pressure outside the can is greater than the pressure inside the can.
What does the National Weather Service say about a tornado before it happens?
I'm not exactly too sure what they would say but if you turned on your TV at the time I'm sure they would say something like this: "A tornado has been spotted in Oklahoma. Take shelter immediately." They would definitely warn of the on-coming storm.
Even the NWS doesn't know there IS going to be a tornado until it has formed. Whenever weather conditions that may produce tornadoes exist, they issue a "Tornado Watch" for the area. They monitor their equipment (especially the dopler radar) to determine where one MAY be forming and which direction it will travel if it forms. Once a funnel cloud has formed, they issue a "Tornado Warning" and predict it's path.
Which gas often create more air pollution?
Nitrogen oxides (NOx) are a common group of gases that contribute to air pollution, often produced from vehicle emissions and industrial processes. They can react with other pollutants in the atmosphere to form harmful compounds such as ozone and smog.
The nucleus is the control center of the cell, responsible for storing and protecting the cell's DNA. It regulates gene expression and controls cell activities by sending out specific instructions to the rest of the cell.
What is the function of pipette?
A pipette is a laboratory tool used to accurately measure and transfer small volumes of liquid. It is commonly used in biology, chemistry, and other scientific disciplines for tasks such as mixing reagents, preparing samples, and conducting experiments.
C. The tilt of Earth's axis causes seasons to occur in certain zones. The angle at which the Earth is tilted as it orbits the sun affects the amount of sunlight different regions receive, resulting in changes in temperature and weather patterns.
