Question

Fatima is watching her pet cat, Winter, napping in the sun. Fatima is curious about the heart rate of Winter when she is napping, so she develops this scientific question: Does a cat’s heart rate change while it is napping?

She decides to develop a hypothesis to test this scientific question. What could Fatima’s hypothesis be?

Answer 1

If a cat is napping, its heart rate will be slower than when it is playing because its heart will not need to pump as much blood to its muscles.

Step-by-step explanation:

this is the sample response on E2020

Answer 2

The correct answer will be-when a cat naps in the sun, heart rate changes.

Step-by-step explanation:

A scientific hypothesis is a proposed statement which explains the natural phenomenon to a limited extent. A hypothesis is formed on the basis of previous research work, therefore, a hypothesis is considered educated guess.

A hypothesis must be constructed in a way that it could be testable therefore includes the variables.

In the given question, Fatima wants to develop a hypothesis related to the heart rate of the cap which could be " when cat naps in the sun, heart rate of cat changes.