Sixth-grade students conduct a laboratory experiment investigating the flow of thermal energy. They place a sealed plastic bag filled with water at 60°C into a beaker filled with an equal amount of water at 80°C. They then put the beaker with the plastic bag in an insulated container.

Based on the flow pattern of thermal energy, what can students predict will most likely happen in about an hour?



A. Thermal energy will flow from the cooler water in the plastic bag to the warmer water in the beaker so that the temperature of the water in the beaker will be 60°C and the temperature of the water in the plastic bag will be 80°C.


B. Thermal energy will flow from the warmer water in the beaker to the cooler water in the plastic bag so that the temperature of the water in the plastic bag will be 80°C and temperature of the water in the beaker will be 60°C.


C. Thermal energy will flow from the warmer water in the beaker to the cooler water in the plastic bag so that the temperature of the water in both the plastic bag and the beaker will be 70°C.


D. Thermal energy will flow from the cooler water in the plastic bag to the warmer water in the beaker so that the temperature of the water in both the beaker and the plastic bag will be 70°C.

A block of chocolate is melting on a hot pan is a example of conduction from the oven conducting the heat that touch’s the pan.

The term conduction is defined as the process in which heat is transferred from the hotter end to the colder end of an object. Temperature is a measure of the amount of kinetic energy processed by the particles in a sample of matter.

Conduction is the conversion of heat energy from one substance to other or within a substance. After some time, the handle of the spoon will become hot. This is due to transfer of heat energy from molecule to molecule or from atom to atom.

Thus, A block of chocolate is melting on a hot pan is a example of conduction from the oven conducting the heat that touch’s the pan.

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Answer:

c option is correct ...

Answer:

I believe it's either A or C

Explanation:

Answer:

Physical change takes place without any changes in molecular composition.

Answer:

Answer: Chemical change; Chemical property of heat of combustion

Explanation:

A physical change is defined as a change in which there is alteration in shape, size etc. No new substance gets formed in these reactions.

Explanation:

Answer:

: Chemical change; Chemical property of heat of combustion

Explanation:

A physical change is defined as a change in which there is alteration in shape, size etc. No new substance gets formed in these reactions.

Example: Melting of ice

Physical property is defined as the property of a substance which becomes evident during physical changes. Example: Melting point

A chemical change is defined as a change in which a change in chemical composition takes place. A new substance is formed in these reactions.

Example: combustion

Chemical property is defined as the property of a substance which becomes evident during chemical changes. Example: Reactivity with other substances

Thus when a piece of coal and a piece of wood is burnt , there is formation of new substances and thus is a chemical change. Combustion is a chemical property as it is reactivity of a substance with oxygen.

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Answer:

b

Explanation:

b is the right answer as latitude and distance from equator need to be considered when talking about climate

Answer:

The N given in the question is normality while the M given in the question designates morality.

Explanation:

Answer:

The correct answer is D: The time it takes the cheetah to travel 110 kilometers.

Explanation:

To find distance, you need to use the formula d = st, or distance equals speed times time. Therefore in order to get the accurate distance, use this formula to help.

Hope this helped, have a good day!

Answer:

hetergeneous I hope this helps!

Answer:i dont know

Explanation:

Answer:

Animal X begins life as a tadpole, and animal Y begins life as a larva that looks like the adult.

Explanation:

brainleist please

Answer:

The third one. cell Y only

Explanation:

Answer:

bacteria, fungi, archaea , and protists in first box

plants and animals in second

Explanation:

eukaryotic are plants and animals

prokaryotic are bacteria and arches

eukaryotic :Animals, Plants, Fungi and Protists

Answer:

I think their atmosphere

Answer:

yes

Explanation:

none needed

Answer:

so yummy

Explanation:

yummy

Answer:a/c

Explanation:

Answer: What does she need from the food she ate and the air she breathes so that she can go on her run?

A. Rosa needs carbohydrates rich food (bread) to carry out her jogging activity. Protein-rich food before exercise is not recommended unless she is on a weight loss program (diet plan).

B. Rosa needs oxygen to perform aerobic respiration, which is required for maximum release of energy (36 molecules per reaction run). Anaerobic reactions yield less energy (2 molecules of ATP per reaction run) and are not recommended.

How do Rosa's body systems work together to get the molecules she needs into her cells?

Rosa's body cells need carbohydrates (glucose) and oxygen to perform aerobic respiration for the release of maximum energy. The glucose and oxygen molecules are provided to the cells via diffusion into the bloodstream. During exercise/jogging, complex molecules of carbohydrates such as starch (present in bread) are broken down into simple molecules (glucose) which are diffused into the blood. Likewise, a high amount of oxygen is provided to the body's cells via diffusion in blood, which is carried out by the faster movement of lungs and heart. The combined action results in the supply of both types of molecules to enter the cell where mitochondria use these substrates to produce energy molecules (ATPs).

How do hair cells use these molecules to release energy for her body to run?

The substrates (glucose and oxygen) enters the bloodstream and then taken up to the cell. Then they are provided to the mitochondria for the release of energy in the form of ATP. This is why mitochondria are known as the powerhouse of the cells. Within the cell, energy is released in a three-step process, i.e. glycolysis, the Krebs cycle, and oxidative phosphorylation. Here glucose reacts with oxygen. In the end, aerobic respiration per reaction run produces 36 molecules of ATP which are sufficient to meet intensive energy needs. During excrcise, the supply of oxygen and glucose is also faster due to faster lungs and heart actions.

PS: Anaerobic respiration cannot meet energy demands faster because the reaction produces only 2 ATP molecules per reaction run.

Explanation:

The molecules Rosa needs from the food she eats and air she breathes are

According to the given question, we can see that Rosa wants to lose weight and she takes peanut butter which she takes and she is breathing normally which helps her perform aerobic respiration.

As a result of this, we can see that there is a need for Rosa to have the right diet which would help her with her jogging and weight loss program.

This would need foods that are rich in carbohydrate which would enable her to lose weight better and oxygen so that she could be efficient with her jogging and burn fat.

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Answer:

I think It's either A. or C.

Explanation:

Answer:

C

Explanation:

Answer:

conduction is the transfer of heat between two objects that are next to each other and in direct physical contact, or touching . It is caused by a temperature difference between the objects. Conduction is one way that heat is transferred from Earth's surface to air. In nature, heat always moves from a warmer object to a cooler object. When air molecules touch the warm ground or water on the surface, heat is conducted from the ground or water to the air molecules, heating them up.

Explanation:

dis it?

Answer:

because they undergo physical and chemical changes

Answer:

of matter describes its "potential" to undergo some chemical change or reaction by virtue of its composition. What elements, electrons, and bonding are present to give the potential for chemical change.

Answer:

C

Explanation:

Weather is what is happening at one point in time

Answer:

C.

Explanation:

The atmosphere changes everyday and that is what makes the weather cold or warm.

Answer:Conduction occurs when energy is passed between objects. The transfer of thermal energy is called heat. Particles of matter are in constant motion.

Explanation:

Answer:

i think its a

Explanation:

what made me think of this answer is "she casts a spell to keep the chicks warm after when the bulb breaks" she had to face the consequences tho she did the right thing

also i'm sorry if if is wrong but i hope its right and i hoped i helped out a little bit

Answer:Ground

Explanation:The roots help soak up moisture fromthe ground and can also store extra food made from photosynthesis

Photosynthesis occurs and extra food is stored in ground plant  tissues in the form of sugars.

It is defined as a process by which plants and other photosynthetic organisms convert the light energy in to chemical energy  through the process of cellular respiration.

Some of the energy which is converted  is stored in molecules of carbohydrates like sugar and starches  which are made up of from carbon dioxide and water . Photosynthetic organisms which can perform photosynthesis  are algae and cyanobacteria. Photosynthesis is largely responsible for producing and maintaining the content of oxygen in earth's atmosphere.

The process begins with proteins absorbing light energy  which are called reaction centers and contain a green pigment which is called chlorophyll . In plants ,these pigments are present inside organelles called chloroplasts while in bacteria they are present in plasma membrane.

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Answer:

a huge cloud of gas and dust particles in space

Explanation:

no shet sherlock

Answer:

1) Tetanus is a potentially fatal bacterial infection that affects the nerves

2)Tetanus causes painful muscle contractions, particularly in the jaw and neck. It can interfere with the ability to breathe, eventually causing death.

3)  infants and the elderly are most likely but every one can get it.

4) The tetanus vaccine is made by taking the tetanus toxin and inactivating it with a chemical. The inactivated toxin is called a "toxoid." Once injected, the toxoid elicits an immune response against the toxin

5) Tetanus antiserum was developed in 1890, with its protective effects lasting a few weeks. The tetanus toxoid vaccine was developed in 1924, and came into common use for soldiers in World War II.

6)CDC recommends tetanus vaccination for all babies and children, preteens and teens, and adults

7) After the initial tetanus series, booster shots are recommended every 10 years.

8)help your immune system protect against these infections

9)Reported tetanus cases have declined more than 95%, and deaths from tetanus have declined more than 99% in the United States since 1947.

10) although the tetanus vaccine can be a very rare cause of a short-lived allergic reaction called "anaphylaxis," the tetanus vaccine does not cause death so the benefits outweigh.

11)They are most commonly found in animal manure and contaminated soil, but may exist virtually anywhere.

Tetanus is a bacteria

The symptoms are muscle spasms and paralysis and or stiffness in muscles

Everyone can get tetanus

Vaccines work by adding a little of the bacteria so your immune system can get a little of tetanus to know how to defend against it.

The first vaccine was produced in 1924

everyone should receive it

you should get one every 10 years

This is important because tetanus is not rare and can cause life changing effects like paralysis

no there has been no real big changes as far as i know

People who vaccinate have a small risk of contracting tetanus from the shot, and people who don't vaccinate could get really bad if not life threatening cases of tetanus.

Yes Defiantly

im not sure about this one

Hope this helps!

Answer:

One CME is produced every five days

Explanation:

Answer:

Up to three CMEs are created in a day.

Explanation:

I took the test and "one every five days" was incorrect, and Up to three CME's a day was right.

Answer:

studied the generation to see there traits

Explanation: