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.
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all nonrenewable fuels can be traced back to the sun as a primary energy source
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The water cycle is a physical change. Water changes from a liquid in the ocean to a gas and then back to a liquid when it becomes...
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A wave that can travel only through matter is termed mechanical wave.
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The ability to compress is compressive strength but when it acts upon something it becomes latter one
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The salt solution in the bucket is 10% of the salt solution in the bag. The bagged solution has a higher density than the bucket...
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The independent variable is the factor in an investigation that the scientist is changing.The dependent variable is the factor...
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Controlled items for, say Graphs, are called Parameters.
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Prisms help magnify things that you are looking at through the telescope.
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As the average speed of air molecules decreases the temperature of the air decreases also.
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How much light a material absorbs or lets through depends mainly on what kind of material it is. Usually pure substances will not...
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The function of a branch on a tree is to grow leaves to produce photosyntisis. Photosynthisis produces sugar for a tree.
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You get aspects of each trait displayed. Like, if one cat had a solid colored orange fur, and it's mate was brown, you could get...
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af fsgd sg
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It is the explanation of signal transfer along a nerve cell or neuron.
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This is just an opinion it is up to the person and how they were raised to determine if they like a subject or not.
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Meteories and bits of rock smacking into the moon
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To ensure the continuity of water, the water cycle is indeed important to the environment.
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Um... let's think about that... If it's hot water, it'll take longer to cool down to become cold water, while the water that's...
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A hand held magnifying glass.
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We"ve been good, but we can"t last, Philip Spector hurry fast- want a crane-like Loop Garou- me I want a Coolant Hoop- We can...
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Sound waves are longitudinal.
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You can make a ramp. In scientific terms, it would be an inclined plain. You can roll balls and drive wheelchairs up and down...
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Blended?
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space is as much same as infinity, if we can find an end to infinity, which is impossible, hence, space is also not measurable...
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A neutralization reaction. Because vinegar is acetic acid, and baking soda is a base, and they neutralize each other.
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most bacteria thrive in a climate that equals human body tempatarture of 37°F althought there are variation on this....
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go to funnyjunk.com
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Yes, The wood would soak up the water and make it buoyant.
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A large LEVER can move a boulder by increasing your lifting power. With the fulcrum closer to the boulder and your force exerted...
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The word normal has several meanings. All the population under the normal curve is normal. Normal is used in geometry and...
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Organisms need them to live (imagine how you would fare at sub-zero temperatures without water)
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Dry ice is solid carbon dioxide (CO2). It sublimates at −78.5°C (−110°F) meaning it goes straight from solid to gas.
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Links between strands
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protons have the mass of 1 a.m.u. neutrons have the mass of 1 a.m.u. electrons have almost no massand because the nucleus is made...
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Speleologists study the science of caves. Spelunkers study caves for recreational purposes.
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no, the density of water never changes
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A warmer object to a cooler object
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I think you're referring to the funnel apparatus where the large end of the funnel is pointed down. The funnel itself is just a...
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Planets,Asteroids,Meteors and Comets.
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Sugar comes from sugar beets or cane sugar. The artificial sweeteners are not from either plant.
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temperature is a way to measure heat, so they are not exactly the same
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Apart from great tolerance for other religions, they advanced Mathematics, made the numerical system as we know it today even....
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CaCO3
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unexperimented experiment!
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Static electricity occurs when an electrical charge builds up due to friction between two different objects such as clouds and...
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becuse of to classified tp orgnize information and how liveng things interact with environement.
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Copper is a very widely used semiconductor. Copper wire is used in electromagnets and electric motors. In electromagnets, it is...
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End over end in the direction of travel
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an object is immersed in a fluid is buoyed up by a force equal to the weight of the fluid displaced by the object. This became...
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you can still hunt them down n kill them!
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The sources of petroleum are the decayed plants and animals that lived long ago on our planet.
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civil engineer designs roads, buildings, airports, tunnels, dams, bridges, water supply, sewage system therefore they should have...
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an example of a gas to solid is dry ice
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of course they can be cut into a square. if you peel the skin of and cut it into pieces you can cut it into a square, rectangle,...
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Sound travels in waves, these waves need a medium to travel through. Think about water in the ocean, without the water, there...
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well... i don't think humans would exist anymore. not because of 2012, but because of global warming, the sun could turn into a...
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The poles are force vectors and vectors forces repel when they are opposed (in opposite direction).
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to let people know the sources to used.
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Since there is no "following," we're on our own. The following DO affect frequency: air density (and thus air pressure,...
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Protein and fat in cheese.
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1st Answer: There was little to no science in the middle ages. The church was against it and they ran the society, so no great...
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Polyethylene is a semi crystalline homogeneous polymer with a molecular weigh profile based upon the production chemistry. Common...
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The same area that El Nino affects, South America. Mostly Chile, Peru, and Argentina.
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it is a gas but when it condenses it becomes a liquid
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I'm pretty sure maize is native to the United States, grown by the Indians in the southeast
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science hasn't done any harm to the earth it is just experimants that can harm the earth
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The human body can make about 20 different amino acids.
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Water and a filter would work.Pour the salt/sand into water and the salt will dissolve. Pour the mixture into a filter and the...
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The Earth itself is made up of Billions of tonnes or Earth, rock, minerals etc. But the earths content is about 75% water and the...
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a golf ball because it is has a higher weight to cross sectional area ratio. ( weight to drag ) The inverse of this is why a...
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30, 40, or 50 gallon depending on how big your water heater is.
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Silver is the best electrical conductor. Copper is second. Gold is third. Aluminum is a good conductor but not for house wiring....
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There is the meristem. It's logical that's more conveniant for a plant to grow at the tip of the root than at the beginning of it...
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The transfer of energy from your racket and the ground to the ball causes its particles to move faster, which causes heat.
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No. Salt water is denser, so you float higher in it.
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The molicule's structure is the key difference. soilds are more packed together and move together while in liquids the molicules...
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If you are talking about ideal conditions then you can use the ideal gas law: (Pressure)(Volume)=(Number of particles in...
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below your chest and above your private parts:)
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In practical there is no machine which have efficiency 100%,i.e. output work = input work. But an ideal machine have efficiency...
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I stands for CURRENT. Many times a on/off power switch will have a I printed on it.
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kinetic energy is related to thermal energy because if there is kinetic energy the product of it is always heat or thermal energy...
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Warm water doesnt actually freeze faster. Distilled water (which you can get from boiling and collecting the steam) freezes at 0C...
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12psi
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it is the one way in which we are learning the facts both in theoritically and practically by making assumptions with our...
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they are pure energy states so it is radiation
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the chemicals that eliminates plants are called herbicides, and pesticides eliminate pests
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density of water is taken as primary density as u can see it is taken as 1 1000
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The force of friction between two objects is the product of the normal force and the coefficient of friction. The normal force is...
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This is a math problem, and major part of this solution is just translating the sentence form of this problem into equation form....
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There are two camps regarding the movement of planets. One is using the Geocentric model (the Earth is the center of the Solar...
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