The correct options are, frying an egg and burning candle.
Explanation :
Physical change : It is a change in which no new compounds are formed only changes occurs in size or state of substance. In this, there is no changes in the substance or compound.
Chemical change : It is a change in which a new compounds are formed by the chemical reaction. Changes occurs in their chemical composition and properties.
Frying an egg : It is a chemical change because a new substance is form by heating.
Burning a candle : It is chemical change because new substances are formed (carbon dioxide, water and heat) by burning.
Boiling alcohol : It is physical change because only changes in the state.
Melting and ice : It is a physical change because only changes in the state.
Making coffee : It is a physical change because no new substance is formed.
Therefore, frying an egg and burning candle are the example of chemical change.
Answer:
When you make a fist after extending your arm and then flex your fingers, what statement is true?
A. It is easier to perform as opposed to flexing the wrist and then flexing the fingers
D. Both A and C answers
B. The actin and myosin are not binding
<h2>C. two muscles are crossing the same joint</h2>
Answer:
the one that you chose it the correct answer.
Explanation:
The correct ordering of the steps in scientific research is given below:
- Research question
- Hypothesis
- Background research
- Controlled experiment
- Data collection
- Data analysis
- Conclusion
<h3>What are the steps in scientific research?</h3>
The steps in scientific research refer to the steps or procedures that are followed by scientists in making scientific discoveries that explain observed phenomena.
The steps in scientific research are as follows:
- Research question - this is the question that a scientist seeks to answer based on his/her observations
- Hypothesis - statements made by scientists to explain their observations
- Background research - research is done to find support for or against the hypothesis.
- Controlled experiment - tests carried out to disprove or prove the hypothesis
- Data collection
- Data analysis
- Conclusion
Learn more about scientific research at: brainly.com/question/17216882
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Answer:
false
Explanation:
it can be fatal, look at the death rates
