Online Physical Science Quiz - Science Skills

Explanation
Science and technology are interdependent because advancements in one field often contribute to advancements in the other. Scientific discoveries and theories provide the foundation for technological innovations, while technology enables scientists to conduct experiments, gather data, and analyze information more efficiently. The two fields work hand in hand, with scientific research driving technological development and technology providing tools and resources to further scientific exploration. This symbiotic relationship between science and technology leads to continuous progress and advancements in both areas.

Explanation
Chemistry is the study of the composition, structure, properties, and reactions of matter. It explores the behavior of atoms and molecules and their interactions with each other. When a paper burns, it undergoes a chemical reaction called combustion. Chemistry explains that combustion is a rapid oxidation process in which the paper reacts with oxygen in the air, breaking down its molecular structure and releasing energy in the form of heat and light. Thus, chemistry provides the understanding of why burning a paper turns it into ashes.

Explanation
Physics is the correct answer because it is the study of matter and energy and the interactions between the two through forces and motion. It encompasses various branches such as Electromagnetism, Hydrostatics, Electricity, Mechanics, and more. Chemistry deals with the composition, properties, and reactions of substances, while Biology focuses on the study of living organisms. Geology is the study of the Earth's solid materials and the processes that shape it. Therefore, Physics is the most appropriate discipline that fits the given description.

Explanation
The statement "The burning bag smelled similar to rotten eggs" represents an example of observation because it describes a sensory experience (smelling) and compares it to a familiar smell (rotten eggs). Observations are made through our senses and provide information about the world around us. In this case, the observation is about the smell of a burning bag.

Explanation
The statement "It might have rained last night since the floor is wet" represents an example of inference because it is based on reasoning and drawing a conclusion from available evidence. In this case, the evidence is the wet floor, and the inference is that it might have rained.

Explanation
The statements that could possibly be a scientific hypothesis are Childhood obesity is tied to the amount of sugary drinks ingested daily, More students get sick during the final week of testing than at other times, and There is a positive correlation between the availability of hours for work and the productivity of employees. These statements propose a relationship between variables and can be tested through observation and experimentation.

Explanation
A circle graph, also known as a pie chart, would best suit data that describe how a part relates to the whole. This type of graph visually represents the proportions of different parts or categories in relation to the whole by dividing a circle into sectors. Each sector represents a specific part or category, and its size is proportional to the value it represents. This allows for easy comparison of the parts and their relationship to the whole, making it an effective choice for displaying this type of data.

Explanation
The number given in scientific notation is 0.004928. To round this number to the nearest hundredth, we look at the digit in the thousandth place, which is 9. Since 9 is greater than or equal to 5, we round up. Therefore, the correct choice is 0.004928.

Explanation
To convert Celsius to Fahrenheit, you can use the formula: F = (C × 9/5) + 32. Plugging in 10 degrees Celsius into the formula, we get: F = (10 × 9/5) + 32 = 18 + 32 = 50. Therefore, the correct answer is 50 degrees Fahrenheit.