Science Experiments

i will give you three....melting point, boiling point, freezing point and one more is density

Ripening fruit is a chemical change because it involves the breakdown of complex molecules in the fruit resulting in changes in color, texture, and flavor. This process is driven by enzymes and chemical reactions within the fruit.

One cone-shaped item that is commonly used in science, especially in science experiments, is the funnel. Funnels are used to channel liquids into small-mouthed containers (i.e. graduated cylinders), reducing spillage.

Portland Cement is made by baking limestone to remove the carbonate, and to this is added some gypsum (to provide sulphate) and diatomaceous earth (effectively a very finely divided silica).

When curing, many complex chemicals are formed, the crystals of which give cement its strength. Silicates, sulphates, and carbonates.

Around 80 percent of the elements on the Periodic Table are metals. Some of the metals are tin, aluminum, francium, lead, and magnesium.

No, filtering something is not a chemical change.

occupies space and has mass. Matter is made up of tiny particles called atoms and molecules that interact with each other to form different substances.

The purest form of matter is typically considered to be an element in its natural state, such as gold or oxygen, consisting of only one type of atom. These elements are considered pure substances because they are made up of only one type of atom and are not mixed with any other substances.

Gas typically has the lowest density among the three physical states of a compound. Gas particles are highly spread out and have more space between them compared to the condensed states of liquid and solid, leading to a lower density.

No, a block of ash wood will not float in methanol. Wood is denser than methanol, so it will sink in the liquid.

No because physical states of matter changes are physical changes. they are not chemical changing meaning it is still alcohol, just frozen.

When a net force acts on an object, it causes the object to accelerate in the direction of the force. The acceleration of the object is directly proportional to the net force applied and inversely proportional to the mass of the object, as described by Newton's second law of motion.

the sugar does not undergo a chemical change it simply dissolves into the water. if you were to then boil the water till it dried you would get your powdered sugar back (although it would probaly be brown because of the pressence of the tea) well to be honest with you it undergoeas a chemical

and a physical change because it changes its look (Physical) and it turns to nothing (Chemical)

To make a falling piece of paper stay in the air the longest, you can create a makeshift parachute by attaching lightweight materials such as string or light fabric to the paper. This will increase air resistance, slowing down the fall of the paper. You can also crumple the paper or fold it in a specific way to create more air pockets that will help slow down its descent.

Is this an AP lab?
The DPIP replaces NADP+.
In photosynthesis, NADP is reduced to NADPH, but NADP is colorless.
DPIP replaces the NADP. When DPIP is reduced, it changes from blue to clear. DPIP is used to show photosynthesis taking place.

Laundry detergent is typically a base because it contains surfactants that help to lift dirt and oils from fabrics by increasing the pH of the water, making it more alkaline.

To let you know what kind of atoms (and how many) make up certain molecules. For example H2O is a chemical equation for a molecule of water. It shows us that there are 2 atoms of Hydrogen and 1 atom of Oxygen in a water molecule. Hope this help! -Sixth Grade Science Teacher

Three types of laboratory burners are the Tirrill Burner, Bunsen Burner, and the Meker Burner. The Tirrill and Meker Burner have air and gas adjustments while the Bunsen Burner has only an air adjustment. Hope that helps.

Yes, tea leaves contain tannic acid, which contributes to the astringent taste of tea. However, the overall acidity of brewed tea is relatively low, making it a popular beverage choice for many people.

The prevailing winds are the winds that blow most frequently across a wind belt. These winds are driven by global atmospheric circulation patterns and are consistent in their direction and strength over a long period of time.

Ice cubes melt faster in water compared to soda due to a lower freezing point and higher thermal conductivity of water. The sugar content and other dissolved substances in soda can lower its freezing point, which may slow down the melting process of the ice cubes.

Polyvinyl butyral resin is a thermoplastic resin that is commonly used as a binder in paint, ink, and adhesives. It is known for its transparent and durable properties, making it suitable for applications such as automotive safety glass and protective coatings.

From Greek osmē, smell (from the strong odor of osmium tetroxide).
Named osmium after http://www.answers.com/topic/greek-language osme meaning "a smell", because of the smell of the volatile osmium tetroxide

animal experamentation is wrong humans should take the place of rabbits, cats and dogs. imagen all the pain you would be in having chemicals being put into your eyes. stuff in your ears. i think it is disguting.

Yeah right, much better to test on some poor country human population... Or maybe just stop researching new medicaments? Who cares about illnesses anyway.