Is there a difference between a hypothesis and a guess? Explain! Walk-In Take out notebook, folder, pencil and pencil box. At the back of notebook, write “Walk In”, today’s date, and copy the question: Is there a difference between a hypothesis and a guess? Explain!

Possible Answers A hypothesis is an educated guess, based on prior knowledge and on a prediction of what could reasonably happen. A guess is just an idea that could not be based in reality at all, or is a lucky thought, or even a wild attempt at a prediction (a “wild guess”).

Making Observations

Two Kinds of Observations Qualitative Made with the five senses (usually only use four, since it’s not safe to taste!) Recorded using words, for things like color, shape, features and how it feels. State facts, not opinions. Root word: quality (info about)

Quantitative Made using measurements. Include a NUMBER and a UNIT, like a pencil is 4 inches long. Can be repeated by someone else. Root word: quantity (amount)

Here’s one: Quantitative has the letter N in it, like N for Numbers! Memory Trick! What memory tricks can you come up to tell the difference between these two words? Here’s one: Quantitative has the letter N in it, like N for Numbers!

TODAY’S ACTIVITY Each table has two objects on it, and some measuring tools.. You and your partner will visit each table, with your notebook and the chart we will prepare. In your chart, record the name of the object, make a quick sketch, and record AT LEAST 2 QUALITATIVE and 2 QUANTITATIVE observations. Move to the next table when you hear the chimes! Remember: QUALitative = use words and five senses QUANtitative = measure or count, use numbers.

SET UP THIS CHART IN YOUR NOTEBOOK on your next blank page SET UP THIS CHART IN YOUR NOTEBOOK on your next blank page. (Use the whole page.) Name of Sketch Qualitative Quantitative object observations observations (WORDS) (NUMBERS) 2 FOR EACH OBJECT 2 FOR EACH OBJECT

Wrap Up What is the difference between qualitative and quantitative observations? Which kind are easier to make, or does it matter? How did we do on following directions? What did you and your partner do to work well together?