Science Experiments

A triamine can act as a catalyst by facilitating a chemical reaction without being consumed in the process. It can interact with substrates to lower the activation energy required for the reaction, thereby increasing the rate of the reaction. Triamines can also enhance the formation of intermediates or stabilize transition states, promoting the desired reaction pathway.

Jellyfish and sea anemones do not have a stomach. They have a simple digestive system that allows them to directly absorb nutrients through their body walls.

On the contrary, shadows (at least, those cast by sunlight) would be shortest at mid day and longest at sunset or sunrise, which is a phenomenon you can easily observe for yourself (which is why I have categorized this question under Science Experiments).

A seismograph is a device that measures and records seismic waves caused by earthquakes or other sources. It provides information about the magnitude, location, and depth of an earthquake by detecting the vibrations of the Earth's surface. Scientists use seismograph data to study earthquakes and assess seismic hazards in different regions.

It all depends on how well you focus the beam of the magnifying glass. You need to adjust the distance from the glass to the paper until the light from the sun is concentrated in a tiny brilliant white spot. That spot is very hot as well as bright and so the paper is heated enough to start charring. It may even catch fire, so be careful to try this on a safe surface like concrete or stone paving.

Try not to look at the bright spot with unshielded eyes, as it is bright enough to damage your eyes.

Okay, some facts first. I have been fishing for 50 years. The position or phase of the moon does not have any real impact on fishing success. I have "killed them" in supposedly "bad" times to fish, and been skunked during supposedly "good" times - and numerous examples of both! That being said: It is supposedly better to fish on a waxing moon (between new moon and full) than a waning moon (from full moon to New Moon). And believe me - your mileage may vary. Something that affects fishing success muchmore than moon phase is weather patterns, as far as "high pressure" and "low pressure" systems.

A lung model is important in studying the respiratory system as it helps researchers and students visualize the structure and function of the lungs. It can be used to demonstrate how air flows in and out of the lungs, the exchange of gases, and the mechanics of breathing. Lung models provide a hands-on learning experience that enhances understanding of respiratory processes.

Butanol, being an alcohol, is slightly polar.

The C-O-H bonds are responsible for that. O being more electronegative pulls electrons towards itself from C and H atoms. However, it is less polar than methanol or ethanol.

Yes. Both the sugar and the water (or other solvent) remain the same chemicals. Since no chemical change occurs during creation of the solution, it is a physical change.

No. At least, as of this writing Japan is still there... I can connect to the Japanese National Tourism Organization's website (which is physically located in Japan) just fine. I can also verify that computers in Switzerland, Germany, and Israel are still working. Since I'm located in California, that pretty much covers the "other side of the world" no matter where you are.

Experiments on animals are done to animals because they have a much higher reproductive rate than humans and can obtain several generations of animals, especially rats or mice, over just one year. Emotional values towards such animals is not shared by most people either, regardless of the arguments that many of you may have against this if this answer is read.

See which one is less viscous (to get into the folds in your fingerprints) or has a higher concentration of the active ingredient.

One that takes the most oil away from your hand could also mean that it's cleaning more, though it leaves yous skin more vulnerable for a while, and may cause your glands to overcompensate and give you a rush of oiliness.

It doesn't. It grows longer later in the day, because the sun is closer to the horizon, throwing a longer light path toward you, thus making your shadow longer. Did you perchance, mis-write your question?

As of September 2021, there have been eight successful landings on Mars by spacecraft that carry out their intended science mission: Viking 1, Viking 2, Mars Pathfinder, Spirit, Opportunity, Phoenix, Curiosity, and Perseverance.

There are 2 types of storage container:

1: Portable wooden storage container. This capacity of this type of container is typically 35 square feet and they are usually delivered to the customers' address. Once there you can load them with the items you wish to store and once this is done the storage company staff will come back and nail the box shut and take it away to be held in long-term storage. You would usually be able to access your things if you give a few days notice.

2: Storage room. A normal storage facility would have many rooms of different sizes, each individually separated in which customers' can store their posessions. You can chose the size of room most appropriate to the amount of things you have to store and you would be able to lock the door with your own padlock. Typically customer are able to access these storage rooms at any time without giving notice and therefore they are extreemly useful as a way of coping with the ever increasing amount of posessions that we all seems to have these days.

The strongest bounty is typically determined by factors such as the crime committed, the level of danger posed by the individual, and the jurisdiction in which the bounty is being issued. It is difficult to pinpoint a single individual as the "strongest" bounty target as this can vary greatly depending on the circumstances.

The Canadarm2 was first manipulated on April 28, 2001.

Tornadoes are not known to transport individuals over long distances like from Houston to Galveston. Tornadoes can cause significant damage to structures and may lift and carry debris, but the chances of being carried such a distance by a tornado are extremely rare. It is important to seek shelter and stay safe during tornado warnings to avoid any potential harm.

Pedigree hybridization is the development of genetically modified foods supposedly to provide better quality, more tolerant, food crops, thus improving the safety of our food. Currently there are also programs for developing genetically modified animals/fish.

Hurricane hunters fly into storms to collect data that helps forecasters better predict the path and intensity of hurricanes. This information is crucial for issuing warnings and making preparations to protect lives and property in areas at risk of being affected by the storm. By providing real-time data, hurricane hunters help improve the accuracy of hurricane forecasts and increase the lead time for preparations.

To make an artificial satellite for a science project, you can use materials like a small Styrofoam ball, solar panels, basic electronic components, and craft supplies. Design and construct the satellite model to include features like solar panels, antennas, and a camera. Research how satellites work and present your project with information on orbits, functions, and types of satellites.

In croquet, Newton's third law applies when a player strikes their ball with the mallet. When the mallet pushes on the ball (action), the ball exerts an equal and opposite force back onto the mallet (reaction), causing the ball to move in the opposite direction. This law governs the transfer of momentum between the mallet and the ball in the game of croquet.

These are Flatworms, and belong to the Pyllum Platyhelminthes. platy = flat, helminthes = worms. Can be obtained with a meat bait in a jar put in a stream. A couple of cm long. These guys have discovered sex, and have eyes, brain. But they consume their prey by wrapping themselves round it and 'sucking up' - after digestive fluids no doubt.

Plants and animals both feed humans. Plants give us oxygen while absorbing carbon dioxide so can breath. Animals help us do jobs and/or create jobs. For example: police dogs help the police by doing what humans can't; my grandfather is a farmer but he only has cows, so without them he wouldn't have a job.