Question

name __________ life science: biology date ________ brain pop scientific method graphic organizer watch the video. brainpop: introduction to the scientific method fill in the table. most of us use a loose form of the scientific method to solve everyday problems. for each of these problems and observations below, develop a hypothesis to explain whats happening. then describe how you might test your theory with a simple experiment. problem observation hypothesis experiment your cat rejects a can of tuna cat food. she ate the can of chicken flavored food you fed her last night, and the beef from the night before. ________ ________ your bedroom air conditioner blows very cold air at night but only cool air during the day. your bedroom gets lots of direct sunlight all day long. ________ ________ youre talking on your cell phone in your bedroom when suddenly the reception goes bad for a minute. just before the reception clears up. you hear the microwave beep in the kitchen. ________ __________

Explanation:

1. For the cat - food problem: The cat may have a preference for certain flavors. To test this, offer different flavors of cat food in random order on different days and record which ones the cat eats.
2. For the air - conditioner problem: The sunlight may be heating up the room during the day, reducing the perceived coldness of the air - conditioner. To test this, cover the windows during the day to block the sunlight and observe if the air feels colder.
3. For the cell - phone reception problem: The microwave may be interfering with the cell - phone signal. To test this, use the cell - phone in the bedroom while someone else turns on and off the microwave in the kitchen and note the changes in reception.

Answer:

Problem	Observation	Hypothesis	Experiment
Your bedroom air - conditioner blows very cold air at night but only cool air during the day.	Your bedroom gets lots of direct sunlight all day long.	The sunlight heats up the room during the day, reducing the perceived coldness of the air - conditioner.	Cover the windows during the day to block the sunlight and observe if the air feels colder.
You're talking on your cell phone in your bedroom when suddenly the reception goes bad for a minute.	Just before the reception clears up. You hear the microwave beep in the kitchen.	The microwave is interfering with the cell - phone signal.	Use the cell - phone in the bedroom while someone else turns on and off the microwave in the kitchen and note the changes in reception.