Writing Up A Scientific Experiment

2.

An educated guess in a Scientific write up is called the ________________.

Explanation
In a scientific write-up, an educated guess is referred to as a hypothesis. A hypothesis is a tentative explanation or prediction that is based on prior knowledge and observations. It is an essential part of the scientific method as it helps guide the research and experimentation process. Scientists use hypotheses to form logical predictions and design experiments to test their validity. The word "hypothesis" accurately describes the concept of an educated guess in a scientific context.

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3.

Here is a part of the instructions you are given BEFORE you do an experiment:1. Place filter paper inside funnel2. Attach funnel to clamp stand using clamp3. Place beaker under funnel4. Pour water sample slowly into funnel (do not let it rise further than 1/3 of the way up the filter paper)5. When all of the sample is filtered dry the filter paper and any solids for 24 hours6. Weigh the filter paper and solids7. Weigh an unused filter paper and calculate the weight of the solids you collected____________________________________________________________________________Which statement below is true about these instructions?

The instructions are written in PAST TENSE: this means that they are written as though we have already done them
The instructions are written in PRESENT TENSE: this means they are written as though we are doing them right this second

Correct Answer

A. The instructions are written in PRESENT TENSE: this means they are written as though we are doing them right this second

Explanation

The correct answer is that the instructions are written in PRESENT TENSE: this means they are written as though we are doing them right this second. This is evident from the use of present tense verbs such as "place," "attach," "pour," and "weigh," indicating that these actions are to be performed in the present moment.

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4.

Here are some results from the experiment in Question 3:sample weight of solids removed A 1.5g B 2.8g C 0.15gWhich statement below is a RESULT rather than a conclusion?

Sample B contained the most solid matter
Sample C contained 0.15g of solid matter
Sample A contained 10 times as much solid matter as sample C; it may have come from a muddier river.

Correct Answer

A. Sample C contained 0.15g of solid matter

Explanation

The statement "Sample C contained 0.15g of solid matter" is a result because it provides a specific measurement of the weight of solids removed from Sample C. It is a direct observation from the experiment without any interpretation or inference.

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5.

Which of the following is true when we are drawing a diagram of Scientific equipment as part of our write up? (There may be more than one answer here)

The pieces of equipment should look exactly as they do in real life
The pieces of equipment are 'stylised' (drawn simpler than in real life), and a ruler is used for straight edges
We should use sketched lines rather than strong solid lines in our diagrams
We should include a title for the set up and labels for each piece of equipment

Correct Answer(s)

A. The pieces of equipment are 'stylised' (drawn simpler than in real life), and a ruler is used for straight edges
A. We should include a title for the set up and labels for each piece of equipment

Explanation

When drawing a diagram of scientific equipment as part of a write-up, it is true that the pieces of equipment should be 'stylised' or drawn simpler than in real life. This is done to make the diagram clearer and easier to understand. Additionally, a ruler should be used for straight edges to ensure accuracy in the drawing. It is also important to include a title for the setup and labels for each piece of equipment to provide clear identification and context.

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6.

Here is a part of the write up from the experiment in Question 3. It is our write up of the 'Method' section of the experiment. We wrote it after we had done the experiment:_METHOD:First we placed a piece of filter paper inside a funnel. Then we attached the funnel to the clamp stand using a clamp. We put a beaker under the funnel and very slowly poured the water sample through the filter paper in the funnel.__Which statement is true about our method write up?

The instructions are written in PAST TENSE: this means that they are written as though we have already done them
The instructions are written in PRESENT TENSE: this means they are written as though we are doing them right this second
The instructions are written in the FUTURE TENSE: this means they are written as though they are going to be done in the future

Correct Answer

A. The instructions are written in PAST TENSE: this means that they are written as though we have already done them

Explanation

The correct answer is that the instructions are written in PAST TENSE, indicating that they have already been done. This is evident from the use of past tense verbs such as "placed," "attached," and "poured."

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7.

Which of the following might you put under the heading RESULTS in your write up? (There may be more than one answer)

Results table
Graphs: line graphs, bar graphs or pie graphs
Diagrams showing observations
Conclusions about what your results could mean

Correct Answer(s)

A. Results table
A. Graphs: line graphs, bar graphs or pie graphs
A. Diagrams showing observations

Explanation

The heading "RESULTS" in a write-up typically includes a summary of the data collected and analyzed during the study. This can be presented in various formats such as a results table, which provides a concise overview of the numerical data obtained. Additionally, graphs like line graphs, bar graphs, or pie graphs are often used to visually represent the data and make it easier to interpret trends or patterns. Diagrams showing observations can also be included under the heading "RESULTS" if they provide visual representations of the data or help illustrate the findings. Finally, conclusions about what the results could mean are also relevant to include in this section as they provide an interpretation and analysis of the data presented.

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8.

When we use GRApHS in our write ups, which of the following MUST BE TRUE (there may be more than one answer).

There is a title that clearly tells us what the graph shows
The units used for any measurements must be clearly indicated on one of the axes
Lines don't need to be ruled
Points we have drawn for a line graph must be connected by RULED lines
If a pie graph shows percentages, they should add up to 100%

Correct Answer(s)

A. There is a title that clearly tells us what the graph shows
A. The units used for any measurements must be clearly indicated on one of the axes
A. Points we have drawn for a line graph must be connected by RULED lines
A. If a pie graph shows percentages, they should add up to 100%

Explanation

When using graphs in our write-ups, it is important that there is a title that clearly indicates what the graph is showing. This helps the reader understand the purpose of the graph. Additionally, the units used for any measurements should be clearly indicated on one of the axes. This ensures that the data presented in the graph is easily interpreted and understood. For line graphs, the points that have been drawn should be connected by ruled lines, providing a clear visual representation of the data. Lastly, if a pie graph is displaying percentages, they should add up to 100% to accurately represent the whole.

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9.

Which of these is the BEST aim for the experiment in Question 3?

To determine the weight of water samples
To determine the amount of solid in the water samples provided
To determine the amount of pure water in water samples provided

Correct Answer

A. To determine the amount of solid in the water samples provided

Explanation

The aim of the experiment is to determine the amount of solid in the water samples provided. This means that the main goal is to quantify the quantity of solid substances present in the water samples. By doing so, the experiment aims to provide information about the level of impurities or contaminants in the water, which is crucial for assessing its quality and suitability for various purposes.

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2

10.

Which of the following conclusions has NO MISTAKES in it? (This means no mistakes in grammar, punctuation or spelling.)

Our investigation showed that the average weight of bubble gum in 25g packets was actually greater than 25g. the average weight was 25.6g. This could be because the manufacturers (makers) want to be sure they have at least as much bubble gum in a packet as it states on the side of the packaging.
The salt content of our samples varied greatly; one sample had only 0.24g of salt, while another contained 7.1g.We discovering that the average amount of salt present in our samples was 3.87g.
The majority of people in our class were found to have the whorl fingerprint pattern on there right thumbs; 14 out of the 25 students had this pattern.
We found that, on average, 40% of the cheek cells on a slide had burst.

Correct Answer

A. We found that, on average, 40% of the cheek cells on a slide had burst.

Explanation

A: The second sentence does not have a capital letter at the beginning

B: using the word 'discovering' is grammatically incorrect - it should be the work 'discovered'

C: The word 'there' in this sentence is incorrectly spelled. When we are talking about something that belongs to someone we need to spell the work 'their'

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Writing Up A Scientific Experiment

We write up an experiment in Science using something called the 'Scientific Method'. Look at the lists below and choose the list that has all the headings for a Scientific write up in the correct order.

Quiz Preview

An educated guess in a Scientific write up is called the ________________.

Here are some results from the experiment in Question 3:sample weight of solids removed A 1.5g B 2.8g C 0.15gWhich statement below is a RESULT rather than a conclusion?

Which of the following is true when we are drawing a diagram of Scientific equipment as part of our write up? (There may be more than one answer here)

Which of the following might you put under the heading RESULTS in your write up? (There may be more than one answer)

When we use GRApHS in our write ups, which of the following MUST BE TRUE (there may be more than one answer).

Which of these is the BEST aim for the experiment in Question 3?

Which of the following conclusions has NO MISTAKES in it? (This means no mistakes in grammar, punctuation or spelling.)