Science Experiments

No, minerals are typically solid inorganic substances with a specific chemical composition and crystal structure. Liquids are a distinct state of matter characterized by their ability to flow and take the shape of their container.

When you bring the polythene-rubbed refill pen closer to the other refill pen in the glass, you may observe them repelling each other. This is due to the buildup of static electricity on the pens from the rubbing of polythene, causing them to have like charges and repel each other.

The speed of sound.

At sea level and 0 deg Celsius, sound travels through air at approximately 1050 ft sec-1/ 343 m sec-1. Good rule of thumb figures are 1000 ft sec-1/ 333 m sec-1

So, first we observe a lightning flash, which to all intents and purposes reaches us instantaneously. By observing the time taken for the sound to reach us we can form a good estimate of the distance of the lightning.

silicates

Indeed, not all crystals are perfect. Often a process called twinning occurs. On the walls of a cavity, there may be several nucleation centres, points of first formation of a crystal. As these crystals grow they will interfere in each other's space.

Oceanic crust contains more magnesium, iron, and calcium than continental crust.

Sexual reproduction is a process where two organisms contribute genetic material to produce offspring with a unique combination of genes. It involves the fusion of male and female gametes to create new individuals. This genetic diversity enhances the adaptability and evolution of populations.

The class of chemicals called esters includes the aromas of flowers and fruits. Others like Octylphenoxypolyethoxyethanol phosphate ester are components of pesticides and can be:

highly acutely toxic, a cholinesterase inhibitors, a known or probable carcinogen, a known groundwater pollutant or a known reproductive or developmental toxicant.

So the answer is - some are and some aren't.

The oxygen produced during photosynthesis comes directly from water. In the light-dependent reactions of photosynthesis, water molecules are split to release oxygen as a byproduct. This process is known as photolysis.

crumple a small piece of paper into a ball size smaller than the mouth of the empty bottle.hold the empty bottle on its side and place the paper ball just inside its mouth.now try to blow on the ball to force it into the bottle.try the activity with battles of different sizes.

when we blow into the mouth of the bottle,the air near the mouth has higher speed. this decreases the pressure there . the air pressure inside the bottle is higher than near the mouth.

Exxon Mobil drilled an oil well in Russia to a depth of 37,016 feet or over seven miles.

Ice will melt faster with salt because the salt lowers the freezing point of the ice, causing it to melt at a lower temperature than it would normally. The salt disrupts the normal freezing process, leading to faster melting.

The myelin is the fatty substance that's present in some kind of neurons, structured as an excess of membrane that does several turns around the axon, improving the electrical transmission along the axon. So, the transmission of electrical impulses in myelinated neurons are faster and more efficient than in the other types.

C6H12O6+6O2--->6CO2+6H2o+energy(ATP)

Glucose Oxygen Carbon Water

Dioxide

-Only glucose and oxygen are needed for cellular respiration.

-Carbon dioxide and water are by-products of cellular respiration.

Minerals can be classified into 13 groups according to their constituents. The major groups are: (1) native elements; (2) sulfides; (3) sulfosalts; (4) oxides and hydroxides; (5) halides and borates; (6) carbonates; (7) nitrates and iodates; (8) phosphates, vanadates, and arsenates; (9) sulfates; (10) tungstates and molybdates; and (11) silicates.

A tornado can change the Earth's surface by uprooting trees, demolishing buildings, and leaving behind debris and destruction in its path. The strong winds and intense force of a tornado can also reshape landscapes by creating new landforms or altering the terrain.

The movement of huge blocks of rock along a fault can produce earthquakes. As the blocks slide past each other, accumulated stress is released in the form of seismic waves, causing the ground to shake. These earthquakes can range in magnitude and impact depending on the size and type of fault involved.

This statement is not accurate. A charged object can still interact with an object that has no charge through electrostatic forces. The charged object can induce a charge on the neutral object and attract or repel it, depending on the type of charges involved.

No. Algae need sunlight to grow. Old truck drivers and uninformed people will insist they are growing algae in their fuel tanks. Most of the time it's a microbial colony growing between the water contaminated tank and the diesel fuel.

Relative Humidity can be calculated by this equation: RH = (Vapor Pressure)/(Saturated Vapor Pressure) x100

From what we know about Saturated vapor pressures (saturated warm air has more water vapor than cool air that is saturated) we notice that more water vapor in the same given volume of air would inherently increase SATURATED vapor pressure. Thus, by simple mathematics (explained below), we can see that relative humidity would decrease as temperatures increase.

If, for a given fraction y/x, as x increases the fraction becomes smaller and smaller - assuming y is constant.

In the gas state of matter, particles are bouncing off each other.

If your colonies were grown in broth, you can simply use your loop to collect loopfuls of liquid medium and smear that onto a glass slide. If they were grown on an agar plate you would have to add a few drops of water to the surface of the glass slide.