Chemistry Middle School

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Helppp This Easyyyyyyyyyyyyyy

Answers

Answer 1

Answer:

Circulatory System -

Nervous System

Respiratory System

muscular system

Related Questions

help plsssssssssssssssssssssssssssssssssssssssssss

Answers

The answer is:

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

Answer:

DECOMPOSITION

Explanation:

HOPE IT HELP ✌️✌️

Help me out<3 i give brainliest if iz correct

Answers

Answer:

I believe the answer is B :)

Explanation:

the answer is letter B.

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 :(

Answers

It will be 8in good luck

can someone help with this please right answers only and dont do #2

Answers

Answer: 1. Use goggles, lab coat, and ask instructor about any questions

Explanation:

5 I think it’s git a teacher

What is formed when the number of electrons is changed?


Question 1 options:


ion



radioisotope



isotope



a new element

Answers

Answer:

ions.....................

Answer:

ions? t.b.h i have no idea

•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

Answers

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.

true or false
the answer would be true

The main function of the respiratory system is to –


A. filter body fluids to remove waste products from the bloodstream.


B. send signals in the form of hormones to the body to control growth, reproduction, and metabolism.


C. rapidly communicate specific information using electrical impulses.


D. exchange gases, mostly carbon dioxide and oxygen, between the body and the atmosphere.

Answers

The answer is d I believe
The answer is D. Exchange gases, mostly carbon dioxide and oxygen, between the body and atmosphere!

What type of plate boundary is shown below?

Answers

Answer:

B. Convergent  Boundary

In the process of precipitation, liquid water changes into water vapor and enters the atmosphere.
True or False?
:p

Answers

Answer:

true

Explanation:

Very true:)! Why does the sentence have to be so long

(HELP I DONT KNOW HOW TO DESCRIBE IT BUT I SEE THE SIMILARITIES) Look at the green lines you created by connecting the three boiling point data points and the three melting point data points. For each of these lines, describe any trends you see.

Answers

Answer: There will be an increase in the boiling point with an increase in the molecular mass.

Explanation:

The melting point is the temperature at which the substance changes from a liquid state to a vapor state at a constant pressure. The pressure required to effect this change is known as the vapor pressure. The higher the vapor pressure, the higher the boiling point and the lesser time it takes for the substance to escape from the liquid state. In this case, a higher molecular mass means more energy is needed to make sure that there is a gaseous change. In addition, the higher melting point requires the lower temperature as well.

Question 4 (1 point)
Very high wispy clouds formed mostly of ice crystals.
Stratus
Cirrus
Cumulous

Answers

Cirrus clouds. Good luck!
circus clouds :))))))))

What have you learned about isotopes from this simulation?

Answers

AnswerI dont Know?

Explanation:

just write down what you’ve learned…?

Answer please and thank you

Answers

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

Answers

Chlorophyll is the answer
Chlorophyll is the right answer!

Which statements demonstrate the law of conservation of matter? (Select all that apply.)

water evaporating in the water cycle which is an open system

water freezing

cookie dough is baked into a cookie

sugar dissolving into water

Answers

all of them. i’m learning this right now. they all have physical and chemical changes.

Water evaporating in an open system, water freezing, cookie dough baked into a cookie, and sugar dissolving into water are all examples of statements that demonstrate the law of conservation of matter.

What is law of conservation?A conservation law in physics asserts that a specific observable property of an isolated physical system doesn't change over time.A physical property, or measurable amount, does not change over time in an isolated physical system, according to the conservation law, often known as the law of conservation, which is a principle in physics.According to the principle of mass conservation, neither chemical processes nor physical changes can create or destroy mass in an isolated system. The mass of the products and reactants of a chemical reaction must be equal, in accordance with the law of conservation of mass.

To learn more about law of conservation refer to:

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Which of the below choices is NOT one of the pieces of evidence for the existance of Pangea?

Answers

Answer: B

Your welcome

Use the notes you recorded about the evidence and the work you did with your group using the Reasoning Tool to help you write a message to Dr. Moraga about the Mesosaurus’ history. You may wish to use some of the vocabulary words listed in the Word Bank below to help you write.

Question: How did the Mesosaurus fossils on the South American Plate and African Plate get so far apart?

Claim 1: The South American Plate and African Plate moved apart suddenly.
Claim 2: The South American Plate and African Plate moved apart gradually.
I need a 9 sentence paragraph for this

Answers

Answer:

Explanation:

im sorry this is all i know

Earth's plates travel at a rate too slow to be experienced by humans. It takes a long time for Earth's plates to travel great distances. The Mesosaurus fossils moved apart gradually over tens of millions of years.

Answer the following questions from the movie ‘Flubber.’

Answers

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

I need help with these questions from 8th Grade science, Specifically Chemistry.
Answers should be detailed, 3-4 sentences.

List at least 3 different physical properties or changes of a substance.

List at least 3 different chemical properties or changes that a substance can experience.

EXPLAIN YOUR ANSWER! NO LINKS! PLEASE DON"T ANSWER JUST TO GET POINTS!
I will report your answer if you do any of those things.
Thx in advance!

Answers

Answer:

Physical properties of a substance can include color, temperature, and mass. These are physical properties because they can be measured without changing a substance's chemical identity. Chemical properties of a substance can include flammability, acidity, and reactivity. These are chemical properties because they can be measured only by changing a substance's chemical identity.

Is this a scientific model? Use complete sentences to explain why or why not. i need help asap!!!!!!!!!!!!!!!!!!!!

Answers

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.

yes, it is a model

it shows what is going on

1. What are characteristics and examples of bryophytes?

2. What are characteristics and examples of protists?

Answers

Answer:

characteristics of bryophytes:

1) the plant body is gametophyte

2) the plants are green and possess chloroplasts

3) he plant body lacks true roots,stem or leaves

4) vascular tissue are completely absent

examples: liverworts, the hornworts, mosses

characteristics of protists:

1) some are multicellular, most are unicellular

2) some are autotrophic, some are heterotrophic

3) they have a nuclear and membrane bound organelles

4) they can be parasites

examples: algae, amoeba, euglena

Explanation:

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:

If the distance of the track is 100 cm and it takes the marble 5 seconds to go from beginning to end, what is the speed ?

Answers

Explanation:

speed = distance ÷ time

= 100 cm ( 1 meter ) ÷ 5 seconds

= 20 cm/s

= 0.2 m/s

determine which is the control group and which is the experimental group in the following scenario ( Scientists are testing a new kind of aspirin to see whether it will relieve headaches. They give one group of volunteers the aspirin. They give another group of volunteers pills that look like aspirin but are actually sugar pills)

Answer this and you will get brainiest WITH NO VIRUS LINKS OR REPORT YOU

Answers

Answer:

The group given the sugar pills.

Explanation:

The control group is the ones given sugar pills because they did not get the experimental aspirin

The group that were given sugar pills

Describe how a chemical change follows the law of conservation of matter.
give examples pls

Answers

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:

A colored thermal image shows a yellow person sitting in front of a red and orange computer screen. The rest of the room is blue. A scale runs from 20.3 degrees Celsius at blue through green and yellow to orange and red at 40.3 degrees Celsius.
This thermogram shows a person using a computer. Complete the sentence to describe the flow of thermal energy between the person and the computer.

Thermal energy will flow from the
to the
[wheres science ?! this is science^]

Answers

Answer:1) person 2) person

Explanation:

I just did the assignment

The correct answer is the computer's thermal energy will be transferred to the human.

Why does energy flow from the computer to the person?Computers are often devices that transform electrical energy into thermal energy, which is then supplied to the user. The energy is transferred from the higher to the lower amount. In this example, the computer produces more thermal energy than the person, which is why energy flows from the computer to the person.

Learn more about computer thermal energy here:-

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Find the average kinetic energy of the molecules shown in the sample above. ( C and D are wrong )
a. 5
b. 4
c. 3
d. 36

Answers

Answer: B

Explanation:

Answer C and D are wrong , so there for the answer is B.4

As the wavelength of a wave increases, the frequency ___________.

remains the same

increases

decreases

Answers

Answer:

It would C.) decrease, I hope this helps! : )

It’s C because “increases”

I need this answer right now please help!!!!!

1. Why did the naked egg swell when it is placed in water?

2. Why did the swollen naked egg shrink when it is placed in corn syrup??

Answers

Answer:

1.porque la cáscara del huevo es semipermeable, es decir, hay sustancias que pueden pasar al interior del huevo o salir de él. En esta ocasión parte del líquido ha entrado dentro del huevo

2.Los huevos se encogen en el jarabe de maíz debido a la ósmosis. La ósmosis es el proceso por el cual el agua entra y sale de las células a través de una membrana semipermeable.

El agua entra y sale de los tejidos a través de la ósmosis. Durante la ósmosis, el agua entra o sale de la célula a través de la membrana semipermeable de la célula. Esta membrana es esencial para permitir que los materiales vitales entren en las células sin permitir el paso de materiales no deseados o peligrosos. Durante la ósmosis

Explanation:

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1.because the eggshell is semi-permeable, that is, there are substances that can pass into the egg or leave it. This time part of the liquid has entered the egg

2.Eggs shrink in corn syrup due to osmosis. Osmosis is the process by which water enters and leaves cells through a semi-permeable membrane.

Water enters and leaves tissues through osmosis. During osmosis, water enters or leaves the cell through the semi-permeable membrane of the cell. This membrane is essential to allow vital materials to enter cells without allowing unwanted or hazardous materials to pass through. During osmosis

Explanation:

give me a crown, please help me a lot

please help please lol

Answers

Answer:a and d

Explanation:

The answer would be A and /or D
Other Questions
Plz solve its timed!!!! Which function is decreasing on the same interval as the function graphed here? Read the following excerpt from Edgar Allan Poes The Cask of Amontillado and answer the question.It must be understood that neither by word nor deed had I given Fortunato cause to doubt my good will.Which of the following is the best inference about the characterization Poe is creating?The author is giving an indirect characterization of the character speaking as having ill will toward Fortunato.The author is giving an indirect characterization of Fortunato as distrustful person.The author is giving a direct characterization of the character speaking as an honest person.The author is giving a direct characterization of Fortunato as a gullible person. Which of the following best compares Linnaeus's classification system to the classification system developed by Carl Woese and his colleagues in the 1990s? Linnaean taxonomy classifies organisms into kingdoms based on physical traits, while Woese's classification sorts organisms into domains based on genetic differences. Linnaean taxonomy classifies organisms into domains based on complexity, while Woese's classification sorts organisms into kingdoms based on method of obtaining nutrients. Linnaean taxonomy classifies organisms into realms based on geographic location, while Woese's classification sorts organisms into domains based on method of reproduction. Linnaean taxonomy classifies organisms into taxa based on size, while Woese's classification sorts organisms into kingdoms based on physical traits. Find the least common denominator between the two fractions. 1/4 and 5/3 Help plssss!!! Giving. 10 pointsssssss What is the answer help plz HELP ASAP!!! Im very confused and I need help. Thank you!!!! 3. In the selection from King Midas," why does Midas tell the Princess and Queen tokeep away from him? The function f(x) = 600(0.981)x, where x is the time in years, models a declining lemming population How manylemmings will there be in 3 years?A.about 566B.about 1,803C.about 1,766D.about 601 what is the value of x in this equation??15(20+x)=420 a solution of KCl in water has a concentration of 0.243 M. The solution has a volume of 0.580 L. How many grams of KCl are present in the solution? Study the map. Where is the Yucatn Peninsula located? The Yucatn is located in the lowlands of Mesoamerica. The Yucatn is located by the Pacific Ocean. The Yucatn is located in the highlands of Mesoamerica. The Yucatn is located in a dry climate. How is the position of farmers growing high-yield cropsdifferent from that of farmers growing traditional crops?O Farmers growing high-yield crops use less land,causing them to follow a higher-density settlementpatternFarmers growing high-yield crops are more likely tobe self-sufficient and thus require less support fromthe rest of society.O Farmers growing high-yield crops require a largeramount of water and are therefore restricted to landwithin the irrigated zone.O Farmers growing high-yield crops require investmentcapital to fulfill their potential, but they can achieveprofits and escape poverty. What level of organization is shown in the image Shanice's school is selling tickets to a play. on the first day of ticket sales the school sold 11 adult tickets and 6 student tickets for a total of $154. The school took in $145 on the second day by selling 3 adult tickets and 11 student tickets. find the price of a student ticket. HELP PLEASE NO FAKE ANSWERS I WILL MARK BRAINLIEST Write a compound interest function to model the following situation. Then, find the balance after the given number of years. $16,000 invested at a rate of 1.2% compounded monthly;7 yearsA. A=16,100 (1.001)^7t; $17,469B. A=16,100 (1.1)^12t; $6,766,377,209C. A=16,100(1.001)^12t; $17,510D. A=16,000(0.001)^12t; $24,150 Melissa's mother was making chocolate chip cookies, but told Melissa that she shouldn't eat the raw cookie dough. Why is it unsafe to eat raw dough? -0) A) The dough can kill healthy bacteria in our mouths that help digest food. B) People that are allergic to the ingredients in dough are able to eat it safely after it has been baked. The flour in the dough will rapidly begin to spoil so it isn't safe to eat it until the cookies have been baked. D) Ingredients, such as flour and eggs, that are used to make dough can have bacteria. Baking is a step that kills the bacteria. A The MAIN difference between terrestrial planets and gas giants is IL Write a Python function that takes as input a list, A, and returns two lists L and G. L constains all numbers in A, which are not A[0] and are less than or equal to A[0]. G contains all numbers in A, which are not A[0], and are greater than A[0].