What did you observe happening in the cups?
Did a phase change or phase changes occur? If so, which one or ones?
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Related Questions
Help me out<3 i give brainliest if iz correct
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Answer:
I believe the answer is B :)
Explanation:
Which of the following occurs over a small area and is a local wind.
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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.
An increase in ocean salinity can increase ____, creating a current.
A. wavelength
B. density
C. the Coriolis effect
D. wave height
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B density
Why is melting ice a physical change?
The process can be undone.
The process moves atoms into permanent places.
The process releases energy.
The process creates a new compound.
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Answer:
The process creates a new compound.
Explanation:
EZ
The electromagnetic spectrum is the portion of energy that reaches the Earth from the Sun. However, the human eye can still only detect a portion of that spectrum because of the _____________ of the visible light waves.
amplitude
wavelengths
crests
troughs
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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.
What are frequency and wavelength?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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A student rolled a red basketball across a gym floor toward a blue basketball, which was motionless. When the balls collided, the student observed that the red basketball had stopped moving and concluded that the blue basketball had exerted a force on the red ball. Evaluate the student’s conclusion by answering the following questions.
• What force acted on the red ball during the collision?
• Compare the forces that acted on the two balls during the collision.
• Given that the red basketball stopped moving, predict the motion of the blue basketball after the collision.
• Was the student’s conclusion correct?
Answers
Answer:
Lực tác dụng lên quả bóng màu xanh
Explanation:
Kết luận của học sinh vậy là đúng
In one form of nitrogen fixation, the ............ energy of ............. splits nitrogen molecules into atoms.
A. chemical, water vapor
B. mechanical, consumers
C. electrical, lightning
D. released, bacteria
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Answer:
A is the answer hope it helps.
In one form of nitrogen fixation, the electrical energy of lightening splits nitrogen molecules into atoms.
What is nitrogen fixation?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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Answer please and thank you
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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.
_____ is the pigment that gives plants their green color.
Chloroplast
Chlorophyll
Cell membrane
Cell wall
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Describe how a chemical change follows the law of conservation of matter.
give examples pls
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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:
help plsssssssssssssssssssssssssssssssssssssssssss
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Breaking down of dead plants and animals is b. decomposition.
Answer:
DECOMPOSITIONExplanation:
HOPE IT HELP ✌️✌️•The biosphere is the parts of Earth and the surrounding atmosphere where there is life.•The biosphere is the parts of Earth and the surrounding atmosphere where there is life.
true or false
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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.
the answer would be true
The presence of _____ in the cell wall makes the walls somewhat rigid.
cellulose
cell membrane
chloroplast
chlorophyll
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Cell wall is made up of cellulose which gives it support to the cell and makes it rigid..
It cannot be cell membrane as it is a complete different part of the cell and controls what goes in and out of the cell, it is not responsible for supporting the cell
____ is the transfer of heat by the flow of a heated material.
A. Radiation
B. Condensation
C. Conduction
D. Convection
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Answer:
A. Radiation
Explanation:Radiation is created by the the earths heat and the radiation is chemical heat made of molecules and atoms.
Use the word bank to label the different parts of a microscope.
1.
2.
3.
4.
5.
6.
7.
8.
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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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strike my first letter, i am still the same. strike my next letter,and i am yet still the same.
what 5 letter word am i?
Answers
Answer:
Alone
Explanation:
wait i think
Answer:
Aloneee!!!!
Step to step explanation:
How does osmosis affect plants?
Osmosis allows more sunlight to enter the plant.
Osmotic pressure helps plants to keep its rigid structure.
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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:
What are the three parts of sound? (Select all that apply.)
the transfer of energy through a medium
the detection of sound
the identification of pitch
the energy source
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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.
What is sound wave?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 the following questions from the movie ‘Flubber.’
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Answer:
those are right
Explanation:
Which statement is correct concerning the cell walls?
Cell walls do not allow water to enter or leave the cell.
All plants and animals remain rigid because of cell walls.
Woody plants can remain standing without water because of stiff cell walls.
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Answer:
Cell walls do not allow water to enter or leave the cell is the correct answer. Hope it helps.
Compare the Engineering Design Process and the Scientific Method! Give 6 Similarities and 6 differences for each one! Be creative in how you compare them!
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Question 5 (1 point)
A low pressure tropical storm that forms over warm ocean water, causing a strong,
whirling storm, is a?
Tornado
Hurricane
sandstorm
thunderstorm
Question 6 (1 point)
A high pressure system generally indicates?
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Answer:
Hurricane
Explanation:
Answer the following questions from the movie ‘Flubber.’
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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
Cumulonimbus clouds are associated with what type of weather?
Question 2 options:
Stormy
fair
windy
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good luck on the rest of your assessment!
Which are mediums that sound waves can travel through? (Select all that apply.)
a wooden wall
the air in your bedroom
the ocean
outer space
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Answer:
A and B
Explanation:
Answer: B. the air in your bedroom, C. the ocean
Explanation:
Hope this helps?!+
Is this a scientific model? Use complete sentences to explain why or why not. i need help asap!!!!!!!!!!!!!!!!!!!!
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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.
it shows what is going on
Which is the Milky Way?(1 point)
A) A galaxy that does not include our solar system
B) A dwarf galaxy
C) Galaxy containing earth(i think this one is right)
D) Galaxy destroyed in collision
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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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1. What happens between the molecules of two objects when a hot object touches a cooler object?
2. What are some examples of good conductors of heat?
3. What are conducting materials used for?
4. What characteristic makes a material an insulator?
5. What are some examples of good insulators?
6. What are insulating materials used for?
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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:
Water is boiling in a clear pot, as shown in the picture.
A clear pot full of water sits over gas burner. The water has large bubbles rising in the water.
Which takes place as water cycles from the bottom of the pot toward the top?
Thermal energy is transferred.
Water molecules gain kinetic energy.
Chemical energy is transferred.
Water molecules gain thermal energy.
THERE WAS NO SCIENCE
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Answer:Thermal energy is transferred.
Explanation:just took the test
the length of a piece of metal that has a melting point of 400 °C. At 20 °C, the metal is 2.3 cm long. The scientist heats the metal to 125 °C. Which of the following is the most likely length of the metal at 125 °C plz answer soon. i really need help :(