Chemistry Middle School

Fill in the chart to describe and give examples of physical changes.

Fill In The Chart To Describe And Give Examples Of Physical Changes.

Answers

Answer 1

Answer:

here are some examples of physical change!!!

Explanation:

-An ice cube melting into water in your drink.

-Freezing water to make ice cubes.

-Boiling water evaporating.

-Hot shower water turning to steam.

-Steam from the shower condensing on a mirror.

Answer 2

Answer:

Examples:

Melting an ice cube.

Boiling water.

Mixing sand and water.

Breaking a glass.

Dissolving sugar and water

Related Questions

What patterns in the rock layer fossils helped you identify an extinction?

Answers

Answer:

Hope this helps!! :D

Explanation:

Often, the rock layers bookending the mass extinction are noticeably different in their compositions. These changes in the rocks show the effects of environmental disturbances that triggered the mass extinction and sometimes hint at the catastrophic cause of the extinction.

You can often tell by disturbances in the fossils bones. Maybe like dust or particles symbolize harm or mass extinction in a prehistoric animal or maybe even new fossils like some animals that went extinct recently like 200 years.

Choose all the answers that apply.

Carbon-13 has an atomic number of 6. Carbon-13 _____.

has two electron shells
has 7 electrons
is an isotope
is in period 2
has 7 neutrons

Answers

Answer:

has 7 neutrons

hope this helped.

has 7 neutrons is the answer

PLs HELP ME LIKE ASAP
How do the light rays emitted by a candle travel?

Answers

Answer:

Explanation:

The light rays coming from the unlit candle and the reflected light rays of the lit candle are superposed on top of one another. ... For very transparent substances like glass, only about 5 percent of the light that hits it is reflected. The remaining 95 percent is transmitted—it passes right on through.

Answer:

The light rays coming from the unlit candle and the reflected light rays of the lit candle are superposed on top of one another. ... For very transparent substances like glass, only about 5 percent of the light that hits it is reflected. The remaining 95 percent is transmitted—it passes right on through.

Explanation:

What are the two things needed to make earth habitable, according to the video

How does Dr.Edgar cause what she knows about the earth to learn about mars?

Link to the video: maybe can get to the comments

Answers

pretty sure ur answer would be water and energy
It’s water and energy.

what is found in the molecule dna?

Answers

Answer:

DNA is made up of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C). The order of these bases is what determines DNA's instructions, or genetic code.

Explanation:

i hop dis helps you

Answer ian rlly kno ...........

Answers

A ..............................
The slope would be -1/2
0-2
2+2 (cause one was negative add instead of subtract)
You would get -2/4 simply that to
-1/2

what am i supposed to write here?

Answers

Answer:

I think u are supposted to find out the are the missing things

Explanation:

Your suppost to find the missing Protons nuetrons and atomic mass in the blanks and the bottom write a sentence about how his gold foil expirement works/ect.

Ok guys thanks for answering my other question, But I have another one.

Which compositional layer is divided between three mechanical layers?

Answers

Answer:

Layer Depth

Lithosphere 0-100 km

Asthenosphere 100-350 km Soft plastic *note: The mantle is not liquid!

Mesosphere 350-2900km stiff plastic

Outer Core 5100-6370 km solid

Explanation:

Answer:

l i t o s p h e r e 0 - 100 km

a s t h e n o s p h e r e. 100 - 350 km

m e s o s p h e r e. 350 - 2900 km

o u t e r. c o r e. 5100 - 6370 km

I don't know if this helped at all but I hope it did!

i need help pleaseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

Answers

it looks like you have to watch the videos linked (i think you need to click on the names of animals). for each video, right down the traits and functions of the animal.
Unfortunately it won’t let me but the answers because it really has to say incorrect answer like-

The wastewater in your home goes to one of three places. It can run into a home septic system, it can go to a centralized sewage treatment plant, or it might be directly discharged into a body of water. Where does your water go after it goes down the drain?

Answers

I think b. Discharged into a body of water

If two people attempt the same maneuver, what determines the amount of force that each is required to exert?

Answers

Answer:

Explanation:

you need to change either the turn of the jump or push off higher or lower from the wall

If the two individuals start at the same position and time, the amount of force exerted by each person is determined by mass of the person.

The amount of force exerted by each person is given by Newton's second law of motion, which states that the force exerted by an object is directly the proportional to the product of mass and acceleration of the object.

F = ma

where;

F is the applied forcem is the mass of the objecta is the acceleration of the object

Thus, If the two individuals start at the same position and time, the amount of force exerted by each person is determined by mass of the person.

Learn more here: https://brainly.com/question/19887955

Which graph above shows an object’s acceleration? Why did you choose that graph(explain why)

Answers

Velocity vs. Time shows an objects acceleration because... in Position vs. Time the line does not go through the origin and it’s very uneven, But Velocitu vs. time goes through the origin and has straight lines.

Answer:

B.

Explanation:

Because the lines are vertical no so wormy like.

I KEEP ASKING FOR HELP IVE DONE MOST OF THE QUESTIONS MYSELF BUT NEED HELP IN SOME IF YOU ANSWER I WILL GIVE BRAINLIEST
What happens to the motion of an object if forces acting on the object are equal and balanced?

A. The object begins to move

B. The object begins to slow down

C. The motion of the object does not change

Answers

Answer:

When the forces acting on an object have equal strength and act in opposite directions, they are balanced. These forces cancel out one another, and the motion of the object they are acting on remains unchanged. The object may change its speed (speed up or slow down), or it may change its direction.

So I think its C

You see this is because if the forces were different the object would either speed up or slow down but in this case the forces are equal so the motion of the object does not change.

Hope This Helps :)

How does melanin provide protection against skin cancer? use absorb
energy
light in your sentece

Answers

Energy for the light can cause skin cancer and damage genetic materials (melanocytes) however melanin absorbs the light meaning the genetic material in their skin cells are protected from any damage so in conclusion the more melanin in the cells the more their cells are protected

The melanin provides protection against skin cancer by absorbing harmful UV light from the electromagnetic spectrum.

What is electromagnetic spectrum?

The electromagnetic spectrum consists of radiation consists of waves made up of electromagnetic field which are capable of propogating through space and carry the radiant electromagnetic energy.

The radiation are composed of electromagnetic waves which are synchronized oscillations of electric and magnetic fields . They are created due to change which is periodic in electric as well as magnetic fields.

In vacuum ,all the electromagnetic waves travel at the same speed that is with the speed of air.The position of an electromagnetic wave in an electromagnetic spectrum is characterized by it's frequency or wavelength.They are emitted by electrically charged particles which undergo acceleration and subsequently interact with other charged particles.

Learn more about electromagnetic spectrum,here:

https://brainly.com/question/23727978

#SPJ6

Why might different types of fossils be found in rock layers that come before and after a rock layer that contains no fossils?

Answers

Answer:

because they can move around under the earth

Explanation:

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