What did you observe happening in the cups?

Did a phase change or phase changes occur? If so, which one or ones?

Answer:

True

Explanation:

The biosphere is the portion of Earth where life occurs -- the portions of the land, water and air in the atmosphere that hold life.

Answer:

I believe the answer is B :)

Explanation:

Answer:

speed is the distance an object travels per unit of time

velocity is speed in a given direction

Answer:

1. Speed in a given dirrection

2. The rate at wich velocity changes with time

Explanation:

I took the test.

Answer:

This is a scientific model.

Explanation:

Since it shows how the water cycle works, and gives us a visual of how it is and what each part does.

Answer:

the answers are

A

C

C

A

100% correct

Explanation:

A. Local winds occur over a small area, while global winds occur over a large area.

B. Local winds blow in from the ocean, while global winds do not.

C. Local winds are considered breezes, while global winds produce mostly storms.

D. Local winds are created by the unequal heating of Earth's surface, while global winds are produced by polar temperature zones.

Answer:

A is the answer hope it helps.

In one form of nitrogen fixation, the electrical energy of lightening splits nitrogen molecules into atoms.

Nitrogen fixation is a chemical process by which nitrogen, is converted into ammonia by enzyme called nitrogenase.

Nitrogen fixation is achieved by the help of a nitrogen-fixing bacteria or lightening which splits nitrogen molecules into atoms.

Thus, in one form of nitrogen fixation, the electrical energy of lightening splits nitrogen molecules into atoms.

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Sound is resistance in air made by waves. In fact it is the transfer of energy through a medium and it have a source. The frequency of sound waves is called pitch. Hence the three parts of sound is options 1, 3 and 4.

Sound wave is a mechanical wave which transfer energy through a medium. There are two types of mechanical waves namely transverse wave and longitudinal waves.

Transverse waves are those in which the oscillation of particles is in a direction perpendicular to the wave. Whereas, in longitudinal waves, the direction of oscillation is along the wave.

Sound waves are longitudinal waves having certain frequency. The frequency of sound waves is called the pitch. Sound waves can be of low pitch or high pitch based on their energy. High energetic waves have higher pitch.

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Answer:

Hurricane

Explanation:

Answer:

A. Radiation

Explanation:Radiation is created by the the earths heat and the radiation is chemical heat made of molecules and atoms.

Answer:

1) all of the above

2) a peice of his hair

3) 77 degrees

4) none of the above

5)slippery,viscous and bouncy

6) flying rubber

7) true

8) 500

9) helium

Answer: In any chemical change, one or more initial substances change into a different substance or substances. ... According to the law of conservation of matter, matter is neither created nor destroyed, so we must have the same number and kind of atoms after the chemical change as were present before the chemical change.

Explanation:

Answer:

Alone

Explanation:

wait i think

Answer:

Aloneee!!!!

Step to step explanation:

Answer:

1. eyepiece

2. body piece

3. Adjustments

4. Arm

5. Objective lens

6. Stage

7. Mirror

8. Base

Explanation:

I hope this helps.

Here's the labeled list of different parts of a microscope using the word bank; Eyepiece (ocular lens), Objective lenses, Arm, Stage, Coarse focus, knob, Fine focus knob, Diaphragm or Iris diaphragm, and Light source (lamp or mirror)

Eyepiece (ocular lens): This is the lens at the top of the microscope that you look through to view the specimen. It typically provides a magnification of 10x.

Objective lenses: These are the lenses located on the rotating nosepiece, closest to the specimen. They come in different magnifications, such as 4x, 10x, 40x, and 100x, and are used to magnify the image of the specimen.

Arm: The arm is the curved part of the microscope that connects the eyepiece and the base. It is used to carry the microscope and provides a handle for holding it securely.

Stage: The stage is the flat platform where the specimen is placed for observation. It may have clips or a mechanical stage to hold the slide in place.

Coarse focus knob: This knob is used for large, rapid adjustments of the focus. It moves the stage up and down to bring the specimen into rough focus.

Fine focus knob: The fine focus knob is used for precise adjustments of the focus. It is used after the coarse focus to bring the specimen into sharp focus.

Diaphragm or Iris diaphragm: The diaphragm or iris diaphragm is located under the stage and controls the amount of light passing through the specimen. It helps in adjusting the contrast and brightness of the image.

Light source (lamp or mirror): The light source provides illumination for the specimen. It can be an electric lamp located at the base or a mirror that reflects natural light onto the specimen from above.

These are the essential parts of a compound light microscope, which is a widely used type of microscope for magnifying and observing small specimens in various fields such as biology, medicine, and materials science.

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Answer: I’m stuck between amplitude and wavelengths but I do think it’s wavelengths.

Correct me if I’m wrong! ^^

The human eye can only detect a portion of that spectrum because of the wavelength of the visible light waves. Therefore, option (B) is correct.

The wavelength of the light can be defined as the distance between the two adjacent points of a wave w.r.t. each other. Two crests on a wave are separated by a distance known as wavelength.

The frequency of the wave can be defined as the number of oscillations of a wave in 1 sec. The frequency has S.I. units per second or hertz.

The relationship between wavelength, frequency (ν), and speed of light (c) is as follows:

c = νλ

The part of the electromagnetic spectrum that is visible to the human eye is known as the visible spectrum. The electromagnetic radiation of the visible spectrum is known as visible light.

Human eyes can detect the wavelength of range from 380nm to 740nm. This wavelength range of visible light corresponds to a band of frequency between 405 THz to 790 THz.

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Answer:

Cell walls do not allow water to enter or leave the cell is the correct answer. Hope it helps.

Answer:

those are right

Explanation:

Answer:

C

Explanation:

The Milky Way is the galaxy that includes the Solar System, with the name describing the galaxy's appearance from Earth: a hazy band of light seen in the night sky formed from stars that cannot be individually distinguished by the naked eye.

Milky Way can be referred to as the galaxy which contains Earth .  The milky way also  comprises of other solar systems such as the Sun and billions of stars.

The name 'milky way' came about as a result of how the sky looks when viewing it at night. It contain several bands of color in a milky manner which are usually difficult to differentiate.

The milky way comprises of different processes such as force of gravity acting on it and also the channeling of energy needed to produce stars which aids vision in the night.

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Answer:

The process creates a new compound.

Explanation:

EZ

Answer:

A and B

Explanation:

Answer: B. the air in your bedroom,  C. the ocean

Explanation:

Hope this helps?!+

Answer:

Lực tác dụng lên quả bóng màu xanh

Explanation:

Kết luận của học sinh vậy là đúng

Answer:Thermal energy is transferred.

Explanation:just took the test

Answer:

1. conduction happens

2. gold silver iron, ect

3. they are good conductors for electricity and heat

4. atoms who have tightly bound electrons

5. plastic, paper, rubber, glass

6. radiant barriers

Explanation:

Breaking down of dead plants and animals is b. decomposition.

Answer:

Explanation:

Answer:

Osmosis is how plants are able to absorb water from soil. The roots of the plant have a higher solute concentration than the surrounding soil, so water flows into the roots. In plants, guard cells are also affected by osmosis. These are cells on the underside of leaves that open and close to allow gas exchange.

Hope this helps.

Answer: In biology osmosis is the movement of water molecules from a solution with a high concentration of water molecules to a solution with a lower concentration of water molecules, through a cell's partially permeable membrane.

Explanation: