1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
fiasKO [112]
3 years ago
6

6. Krystal is exploring the properties of iron. She takes a large iron nail and finds that the nail does not attract other metal

objects. Next, she uses a battery and copper wire to transform the nail into an electromagnet. When she connects the circuit, the nail becomes magnetic and can pick up small metal objects like paper clips.
What best describes what has happened to the iron in the nail that causes it to become magnetic?

A. A physical change has occurred, because the chemical properties of the iron remain the same.

B. A physical change has occurred, because there is a chemical attraction between the iron and paper clips.

C. A chemical change has occurred, because there is a chemical attraction between the iron and paper clips.

D. A chemical change has occurred, because the chemical energy in the battery is transformed into magnetic energy in the iron.
Biology
1 answer:
cestrela7 [59]3 years ago
8 0
D. is your answer for the question
You might be interested in
The physical changes of the adult years are __________. stagelike—occurring in a predictable sequence similar across all parts o
Alona [7]

Answer:

The correct answer is multi-dimensional and multi-directional.

Explanation:

Adult years are the time that show multi dimensions as age-related changes starts that include biological factors such as molecular and cellular changes, while

In early adulthood years our physical abilities are on highest level including reaction time, muscle strength sensory abilities, and many more.

Thus, the correct answer is multidimensional and multi-directional.

8 0
3 years ago
What are the two boundaries of the intertidal zone?
Novosadov [1.4K]

Answer:

Along most shores, the intertidal zone can be clearly separated into the following subzones: high tide zone, middle tide zone, and low tide zone. In the intertidal zone the most common organisms are small and most are relatively uncomplicated organisms.

Explanation:

3 0
3 years ago
Cardiac veins drain blood into the_______, which will empty into the_______.
valentina_108 [34]

Answer: Option E.

Coronary sinus, right atrium.

Explanation:

Coronary sinus, right atrium is part of the circulatory system that consist of arteries, arterioles, veins, capillaries that move blood to the heart tissue and remove waste from the blood.

The cardiac veins return deoxygenated blood to the right atrium and it them moves to the right ventricle then to the heart where it becomes oxygenated

The coronary sinus received drain blood from ventricles veins, it then moves the deoxygenated blood to the right atrium which it transfer or move to the right ventricle (through the tricuspid valve which in turn move the blood to the pulmonary artery for pulmonary veins.

3 0
4 years ago
Two of the four classes of organic compounds are proteins and nucleic acids. What is the relationship between proteins and nucle
bogdanovich [222]

Answer:

D

Explanation:

in DNA, the combination of the different nucleic acids give the code to make amino acids, which are the monomers of proteins. If anyone has a better explanation, comment it. it's been a while since I took bio

6 0
3 years ago
How does a hypothesis help scientists understand the natural world?
Pepsi [2]
<span> The hypothesis is an idea that suggests how things work in nature.

The main way the hypothesis is going to help you is by testing it, scientists can (most of the time) set up tests to verify is the hypothesis is possible or not, still that doesn't mean that the hypothesis is true. If the hypothesis is possible(likely to be right) and is the more likely to happen, it is said to be an accepted hypothesis. Hope this helps!!</span>
8 0
4 years ago
Other questions:
  • Which shows the general structure of an aldehyde?
    9·1 answer
  • How many primary tissue types are found in the human body?
    5·1 answer
  • Historia del aparato de golgi (descubrimiento)
    7·1 answer
  • ATP is produced during the process of cellular respiration. Which is the order of the steps of cellular respiration? Krebs cycle
    7·2 answers
  • In the oxidation of pyruvate to acetyl CoA, one carbon atom is released as CO2. However, the oxidation of the remaining two carb
    5·1 answer
  • Fast riverine floods include flash floods from intense thunderstorms. True False
    5·1 answer
  • The COOLEST REGIONS are around the center of Earth or the Equator (0 degrees).true or false
    14·1 answer
  • Trypanosoma is a parasitic protist that causes _______?​
    13·1 answer
  • Which mitotic event below occurs after the other three events have taken place?
    11·1 answer
  • What is the name of the structures that are nuilt to recognize specific invaders and trigger an immune response?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!