Magnification and focus
Before you read
Test yourself first: 5 questions
Question 1 of 5
A microscope is a laboratory tool used to:
Answer: B. A microscope magnifies objects too small to see with the naked eye, such as cells.
Question 2 of 5
Cells were first discovered and are studied using a:
Answer: B. A microscope magnifies cells and other tiny structures for study.
Question 3 of 5
Using your senses to gather information is called making an:
Answer: B. An observation is information gathered directly through the senses or instruments.
Question 4 of 5
A disease-causing organism, such as a harmful bacterium or virus, is called a:
Answer: B. A pathogen is any agent that causes disease.
Question 5 of 5
Washing hands and cooking food thoroughly help prevent:
Answer: B. Good hygiene and proper cooking reduce the spread of disease-causing germs.
Keep the streak going with more questions like these, each with a full rationale.
