Group the labels according to the type of waves they describe.

Mechanical waves can transmit through a medium and electromagnetic waves can travel in vaccum and both can transfer energy.

Mechanical waves are those waves in which oscillation of matter takes place in any medium.

Electromagnetic waves are those in which electric field and magnetic field are present in the perpendicular direction to each other and also able to propogate in vaccum medium.

Both waves can transfer energy and travel in the transverse direction.

Hence mechanical waves can transmit through a medium and electromagnetic waves can travel in vaccum.

To know more about mechanical & electromagnetic waves, visit the below link:
https://brainly.com/question/16064726

The eye symbol represents Which hazards

Neutron stars are incredibly dense. Describe a neutron star in terms of a sugar cube.

I need help quickly, this assignment is due in a few hours. I have a few 8th grade science questions I need help with. These is not need to explain your answer, just tell me if the answer is a,b, or c. Also, please answer all of the questions listed not just some of them. I will be giving 20 points if you answer, and brainly to the first person to answer. The questions look really complicated but it is mainly just a long description. The questions themselves seem simple.

QUESTION ONE : Miranda was learning to bake bread at home. Her first few batches of dough did not rise, or expand, as much as they should have. Miranda's mother noted that the kitchen was cold and suggested that the dough might not be warm enough to rise. Miranda decided to test her mother's suggestion. She made a large batch of dough and divided it into six equal-sized balls. Then, she put each ball into a bowl. She left three bowls on the counter in the kitchen, where the temperature was 63oF. She left the other three bowls on her desk in her upstairs bedroom, where the temperature was 80F. After one hour, Miranda measured the size of each dough ball.

Which of the following was the dependent variable in the experiment?
a. the temperature where the dough was left to rise
b. the ingredients used to make the dough
c. the size of each dough ball

QUESTION TWO: Jada liked to make guacamole, but she could often find only unripe avocados at the grocery store. In biology class, Jada learned that ripe fruits produce a gas called ethylene that can cause other fruits to ripen. Jada wondered whether storing ripe bananas with unripe avocados would make the avocados ripen faster. Jada prepared four paper bags with five unripe avocados in each bag. She added on ripe banana to two of the bags. Then, Jada sealed all four bags. After three days, she opened each bag and counted the number of ripe avocados in each bag.

Which of the following was the independent variable in this experiment?
a. the type of paper bag used
b. the number of bags with a ripe banana
c. the number of ripe avocados

QUESTION THREE: Colette was using steel to make rusted sculptures. After building each sculpture, she caused the steel in the sculpture to rust by placing it into tub filled with salt water for eight hours. Colette wondered if steel would rust faster submerged in vinegar instead of salt water. To find out, Colette cut ten squares of steel sheet metal and split them into two equal groups. She put one group of squares into a tub filled with salt water and the other group of squares into a tub filled with vinegar. Once an hour for eight hours, Colette counted the number of rusted steel squares in each group.

Which of the following was a variable that was held constant (control variable) in this experiment?
a. the type of liquid used
b. the size of the squares of steel sheet metal
c. the number of rusted steel squares

QUESTION FOUR: David divided 40 unripe bananas evenly among eight paper bags and sealed the bags. He poked 20 small holes in four of the bags and left the other four without holes. He kept the bags at room temperature for three days. Then, David opened the bags and counted the number of brown spots on each banana. He compared the average number of brown spots on bananas from bags with holes to the average number of brown spots on bananas from bags without holes.

Identify the question that David's experiment can best answer.
a. Do bananas develop more brown spots when they are kept at room temperature compared to in a cold refrigerator?
b. Do bananas develop more brown spots if they are kept in bags with holes compared to bags without holes?
c. Do bananas develop more brown spots when they are kept in brown paper bags compared to in a plastic bag?

QUESTION FIVE: Ten groups of chemistry students combined three solutions that, when mixed, chemically reacted and turned blue. Before mixing, five groups of students heated the solutions to 25C, and five other groups heated the solutions to 50C. The students recorded how many seconds it took for the mixtures to turn blue. Then, the groups shared their results, and the class compared the time it took for the mixtures to turn blue at 25C and at 50C.

Identify the question that the students' experiment can best answer.
a. Does the type of color the mixture produces depend on the temperature of the solutions?
b. Does the mixture of solutions release more gas when they are mixed at 25C compared to 50C?
c. Does the mixture's color change faster when the solutions are mixed at 25C or 50C?

Different finch species have beaks of different shapes and sizes. What do these beak differences tell us?
A. Differences in beak shapes tell us that all the finches eat the same type of food.
B. Different finch beak shapes are evidence that all Galápagos finches shared a common ancestor a long time ago.
C. Different finch beak shapes are evidence that over time, finch species adapted to different food sources on the islands.
D. Different finch beak shapes are evidence that several finch species with different beak shapes came to the Galápagos Islands from the mainland.

is copper a renewable resource? explain your reasoning

What kind of rocks would you expect to see on Mars? What evidence supports your response?

Please help me por favor :'(

Which option correctly describes the pattern of valence electrons on the periodic table?

O The number of valence electrons increases from right to left
O The number of valence electrons increases from bottom to top.
O The number of valence electrons increases from top to bottom
O The number of valence electrons increases from left to right.

Please help, I don't get what does this means

3. Name the compound sodium makes with the following elements.
(a) Calcium carbonate: ​

Using insulate gloves, Ms. Sanders transferred a few pieces of dry ice to a flask and covered it with a balloon. After a few minutes the students observed the balloon starting to inflate. Explain what was happening in the flask and balloon to cause it to inflate. Pick the statement that DOES NOT apply to the changes.

A) The dry ice changed from a solid to a gas at room temperature.
B) The carbon dioxide gas had more kinetic energy than the solid carbon dioxide.
C) Rapidly moving carbon dioxide gas molecules moved into the balloon and inflated it.
D) As the temperer increased, the solid carbon dioxide changed phase: solid - liquid - gas.

This image shows a volcanic eruption in Hawaii with lava flowing into the sea.


Which statement best describes this eruption?

Its magma is high in silica.
Its magma has low viscosity.
Its gases are released in rapid bursts.
Its lava came from an explosive eruption.

Study the picture of copper. How many connections or bonds does the center atom have to the other atoms?

Do you think a moving skateboard has energy? Why or why not?
PLEASEEEEEE HURRY

DAILY REMINDER ~ YOU ARE LOVED BY SOMEONE I HOPE YOU HAVE A WONDERFUL DAY BABES!

1. Using D10W and a vial of NaCl 4 mEq/mL, how many mL of NaCl are needed to prepare 250 mL of a
D10/NS solution?
a. 4.8mL
b. 9.6ml
c. 19.6mL
d. 154mL

In this activity, you will investigate how the motion of objects of different masses is affected when the same force is applied to them. You will use the scientific method to set up your experiment. Question__________________________________.

The polyatomic nitrate ion (NO3−) is present in both the products and the reactants of the chemical equation shown below.

Ba(NO3)2 + 2LiOH → Ba(OH)2 + 2LiNO3

How many nitrate ions are in the products and the reactants of the chemical equation?

How to work out the relative mass of potassium? What is the calculation? ( explained very easily )

how many joules would it take to raise 2 grams of AL 1 degree?

List the five physical phase changes of matter and give one example for each.

I just need help all I need is the answer please some one

piece of roasted salted fish is put in a mouse trap. explainwhy the mouse comes to the trap

ANSWER URGENTLY FOR BRAINLIEST (LEGIT)

Part D

The lineage of pea plants produced round seeds for four generations. The plants that fertilized these pea plants also produced round seeds. However, in the fifth generation, the plant produced to two plants with wrinkled seeds. Can that be possible? Explain your answer using your pedigree chart.

In an exothermic reaction, chemical energy is converted to _____.

1.thermal
2. mechanical

which chemical process is illustrated below?

Observe the experiment in the image. HELP THIS WAS DUE YESTERDAY



Based on your knowledge of chemistry, explain what the reactants and the products are of the chemical reaction, why the masses on the scale are the same, and what type of chemical reaction indicator was given to show that a chemical change has taken place.

G
A substance occupies one half of an open container. The atoms of the substance are closely packed but are still
able to slide past each other.
What is most likely the phase of the substance?
gas
liquid
solid and gas
O liquid and solid
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Match the term to its definition (Lessons 6.03, 6.04 and 6.05)
(i can't fit this all without confusion)

Methane is a gas at room temperature and pressure. Explain why this is the case.

pls help por favor i dont understand