Test on Essential Scientific Skills and Methodology

Question 1: In the provided example of the red blood cell micrograph, the measured size of the diagram was 89 mm before calculating its actual size.

A. Yes

B. No

Explanation: The red blood cell micrograph example explicitly states 'measured size of diagram (µm)' as '89 mm x 1000' in the calculation, indicating the initial measured size was 89 mm.

Question 2: According to the provided study materials, what is the crucial initial step when determining the actual size of an item from a micrograph, whether magnification or a scale line is given?

A. Measure the length of the scale line provided in the micrograph.

B. Determine the widest part of the micrograph provided and draw a line across the length of the item.

C. Convert the measured size from millimeters to micrometers by multiplying by 1000.

D. Identify the narrowest part of the micrograph and draw a line across its length.

Explanation: Both methods for calculating actual size (when magnification is provided, or when a scale line is provided) state the first step as: 'Determine the widest part of the micrograph provided and draw a line across the length of the item.' The other options describe subsequent steps, an incorrect measurement approach, or steps specific to only one method or later calculations.

Question 3: International news websites such as BBC and National Geographic primarily aim to increase advertisement revenue by publishing sensation-driven articles.

A. Yes

B. No

Explanation: International news websites like BBC and National Geographic are classified as credible sources because they only distribute information that is well researched and confirmed, and they are held accountable for the distribution of correct information. Sensation-driven publications, in contrast, aim to get as many readers as possible to increase advertisement revenue.

Question 4: According to the study materials, which of the following characteristics contribute to the credibility of scientific websites?

A. They are managed by qualified scientists who are experts in their field.

B. They are primarily concerned with publishing information about the scientific world.

C. They allow any user to edit or upload new information to ensure diverse viewpoints.

D. Their main goal is to generate sensation and increase advertisement revenue.

Explanation: Scientific websites are considered credible because they are managed by qualified scientists who are experts in their field and are concerned with publishing information about the scientific world. Websites where any person can change or edit information (like Wikipedia) or publications aimed at creating sensation (like social media or blogs) are not considered credible.

Question 5: In a Grade 12 essay, students receive marks for every counter argument fact they include.

A. Yes

B. No

Explanation: Students in Grade 12 only receive marks for 4 counter argument facts, even if they include more, as stated in the NB Tip regarding using the rubric.