Answer: Therefore, the correct answer is: Waves are seen to approach the beach at an angle.
Explanation:
An observation in science refers to a direct and factual statement based on the information gathered through the senses or measurements. Among the given options, the following statement would be considered an observation:
"Waves are seen to approach the beach at an angle."
This statement describes something that can be directly perceived or measured by observing the behavior of waves as they move towards the beach. It is a factual and observable phenomenon that can be witnessed and documented.
On the other hand, the remaining options involve explanations or concepts rather than direct observations. They provide information about the causes, effects, or mechanisms behind waves, but they do not describe something that can be directly observed or measured. These options involve interpretations, explanations, or generalizations based on scientific knowledge, rather than direct sensory or measurable data.
B. finding a comet
C. examining the structure of plant cells
D. building a garage
2. Which of the following procedures involves a physical change in one of the substances?
A. creating salt by reacting sodium metal and chlorine gas
B. allowing a nail to rust
C. building a model rocket propelled by mixing baking soda and vinegar
D. grinding chalk into a fine powde 3. You have three molecules of glucose (3C6H12O6). How many oxygen atoms do you have?
A. 1
B. 3
C. 6
D. 18
Question 1:
The right answer is A
Chemistry is a science of experimental nature that studies the composition of matter and its transformations.
Chemistry is thus interested in the elements that constitute matter (atoms, ions, etc.), in their properties and in the chemical bonds that can be created between them.
Question 2:
The right answer is A
Sodium chloride is an ionic chemical compound of the formula NaCl. It is more commonly called table salt or cooking salt, or simply salt in everyday language.
It is clear that it exists in the form of solid salts.
during his training, there was a physical change of sodium (metal) and chlorine (gas) into a salt.
Question 3:
This question is a little bit tricky
If we assume that the question is aimed at finding the total number of oxygen in all three molecules together, the answer is 18.
A glucose molecule is made up of 6 atoms of oxygens if we have three glucose molecules (assuming that they are bound), we multiply by 3 and this gives us 18 oxygen atoms.
It shows the probable sequence of origins.
It shows shared, derived characteristics.
Answer:
A
Explanation:
Rank