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Science

The observation, identification, description, experimental investigation, and theoretical explanation of phenomena is all part of science. Nothing is immune to the scientific process: from charm quarks that haven't existed naturally since the beginning of time to Pluto, recently demoted from planet to dwarf planet. Questions on knowledge about the material and physical aspects of our world are asked and answered here.

203,801 Questions

What is an acrostic poem for homeostasis?

homeostasis maintains cell waste from blood,blood volume, + blood pressure

over two functions occur in the urinary system

metabolic waste, salt + excess water is removed in the urinary system

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Is synthetic rubber renewable?

Well, isn't that a lovely question! Synthetic rubber is not renewable because it is made from petroleum, a non-renewable resource. But don't worry, there are many other renewable alternatives like natural rubber that come from trees and plants. Keep exploring and you'll find sustainable options to bring joy to your creations!

Where did liquid come from?

Liquid is one of the 3 states that mater can assume.a phase change from a solid to the liquid state When thermal energy is added temperature then rises allowing the solid to reach the melting point.

What new insights learning did you get about our nature worldhow did it change your vieew about light?

Through studying the nature world, I gained a deeper understanding of the interconnectedness of all living organisms and their dependence on each other for survival. This has changed my view of light as not just a source of illumination, but as a critical component of ecosystems and the basis for photosynthesis, which is essential for sustaining life on Earth. I now appreciate light as a fundamental force that drives biological processes and shapes the environment in which we live.

How long can a paper cup keep ice cold?

A paper cup can keep ice cold for about 15-30 minutes, depending on the ambient temperature and the thickness of the cup. After that, the paper cup starts to absorb heat from the surroundings, causing the ice to melt faster.

A way of learning about the natural world and the knowledge gained through the process?

Studying the natural world through scientific observation and experimentation is a process known as scientific inquiry. Through this method, we can gain knowledge about various phenomena, processes, and systems in nature, leading to a deeper understanding of the world around us.

What are the characteristics of terrestrial environment?

Well, darling, terrestrial environments are basically any place on land. Think forests, deserts, grasslands - you name it. These places are home to all sorts of critters, from tiny insects to mighty elephants. So, if you're looking for some good ol' dirt under your feet, terrestrial environments are where it's at.

Five different between floppy disk and CD disk?

There are a number of differences between CD and floppy discs.

Floppy discs are magnetic and use magnetism to store data, CD drives are optical and read pits in a reflective surface using a laser. CD's have a much higher data density than floppy discs. CD's are a much higher capacity and can be read at much higher speeds than floppy discs.

Explain clearly what happened when Thales rubbed the amber with the silk cloth?

When Thales rubbed the amber with the silk cloth, he was observing the phenomenon of static electricity. The friction between the amber and silk caused the transfer of electrons, with the amber becoming negatively charged and the silk becoming positively charged. This separation of charges created an electric field around the amber, leading to the attraction of lightweight objects like feathers or small pieces of paper. This experiment marked one of the earliest recorded observations of electricity and laid the foundation for the study of electromagnetism.

What must be removed from some of the glucose molecules to join them?

In order to join multiple glucose molecules together to form larger polysaccharides like starch or glycogen, water molecules must be removed in a condensation reaction. This process involves the removal of a hydroxyl group (-OH) from one glucose molecule and a hydrogen atom (-H) from the other glucose molecule, resulting in the formation of a glycosidic bond between the two glucose units. This dehydration synthesis reaction requires energy input to proceed and results in the release of a water molecule as a byproduct.

Why must the intersection of the 3 lines be the center of GRAVITY of the irregularly shaped lamina?

Friend Hilmar Zonneveld is perfectly and absolutely right. Weight, being a vector, of an object will always act through the center of gravity. Also definition of centre of gravity confirms that whatever be the position the weight would always act through a point known to be center of gravity

List things that need to be synchronized?

A list of things that will be synchronized to the deviceit means like doing things togetheYes, men compete in synchronized swimming to this day, but not many

Fossil fuel combustion effects what natural cycle?

Fossil fuel combustion affects the carbon cycle by releasing large amounts of carbon dioxide into the atmosphere. This leads to an increase in the greenhouse effect and contributes to global warming and climate change.

Why do many people paint their roofs silver rather than black?

Black both absorbs and emits radiation better. That would result in the house being hotter in the daytime and colder at night.

Is lemonade a gas and a liquid?

Lemonade is a liquid, not a gas. A gas is a state of matter in which the particles are spread out and move freely, while a liquid has particles that are close together but can still move past one another. Lemonade is a mixture of water, lemon juice, and sugar, which are all in liquid form.

What is an analytical question?

An analytical question is one that requires critical thinking and analysis to answer. It often seeks to understand why something happened, how it works, or what impact it has. Analytical questions help to uncover underlying patterns, relationships, and insights within a topic or issue.

How does a can crush when you heat up the air inside then let it cool?

You must mean a can that you can heat when open and seal air tight when you let it cool. When you heat it the air inside is heated and expands; so the molecules spread out (less molecules=less air). When the can is sealed and cooled, the molecules move together and that creates a vacuum relative to the outside air pressure, and that pressure crushes the can.

Definition of integrated science?

Integrated Science is the study of biology, anatomy, chemistry, earth/solar system, ecology, genetics, and physics. These topics are integrated, showing how all things work together to sustain life.

Why magnifying glass is useful but not essential?

A magnifying glass is useful because it can help magnify small objects or text for easier viewing. However, it is not essential because there are other ways to achieve magnification, such as using a microscope or a digital magnifier. Additionally, not all tasks require magnification, so a magnifying glass may not always be necessary.

What changes in air pressure would you expect if you carried barometer down a mineshaft?

As you descend down a mineshaft, the air pressure would increase due to the weight of the air above you pressing down. This is because air pressure is directly proportional to the density of the air above a given point. The barometer would register a higher pressure reading as you go deeper into the mineshaft. Conversely, as you ascend back to the surface, the air pressure would decrease, resulting in a lower pressure reading on the barometer.

What are the similarities of colloids and suspension?

Colloid: A solid which is dispersed amongst a liquid. The solid particles do not settle. Not a solution, because the solid is not dissolved, it is dispersed.

Solution: A Mixture of a liquid with a solid dissolved in it. Not a Colloid.

What are some non examples of electric motor?

Non-examples of electric motors include mechanical devices that do not use electricity for power, such as a manual hand-cranked winch or a steam engine. Additionally, devices that use alternative sources of energy, like a windmill or a water wheel, are also not examples of electric motors. Finally, devices that convert energy in a different way, such as a pulley system or a hydraulic motor, are not considered electric motors.

The girl made a rainbow with a prism identify the verb?

The verb in the sentence is "made." Verbs are action words that show what the subject is doing. In this case, the subject "girl" is performing the action of making a rainbow with a prism.

Why does the amount of light reaching the woodland floor decrease during may?

Because in May, the laces start to grow back so the light is blocked and taken in by the leaves on the trees

Is tin a metal non metal or metalloid?

Tin has two forms (allotropes) one is "white tin" (beta-tin) which is a metal although some chemists/metrial scientists would call it a "poor metal"- and "grey tin" (alpha-tin), a low temperature form, which has a similar structure to diamond and more covalent in character. So one allotrope is a metal and the other isn't. Probably the answer a school teacher expects is tin is metal.