If your teacher asked you to make qualitative observations about the class’s pet hamster, which group of words might be used?

A long hair, white and brown colored, soft

A mass of 3 kg, 11 cm long, age of 16 months

A mass of 3 kg, 11 cm long, cute

A scientist discovers the body of an unknown species of frog in the rain forest of Brazil. She writes several statements in her journal about the animal shown above. Which of the following is an observation about the frog?

The frog might be poisonous because it is very brightly colored.

The frog is probably a tree climber because it has large, round toe pads.

I think the frog is a species of poison dart frog because of its size and color.

A student placed 50 mealworms in the middle of an aquarium containing a light, a cardboard tube and a water dish. He waited five minutes and then recorded the data for the first trial in the table above. The student repeated this procedure two more times, and recorded the results. Read the results of all three trials. Which observation could you make about mealworms based on the results.

There were 6 mealworms under the light in trial 2.

The mealworms probably prefer the darkness of a cardboard tube.

Mealworms don't prefer one environment over the other.

What is an inference?

A prediction or logical conclusions about our observations

deciding if an observation is qualitative or quantitative

What inference can you make based on this picture?

Two students are holding umbrellas.

What inference can you make based on this picture?

Two people are wearing scarves.

There is snow in the background.

It is mid-summer and I go away for a vacation for two weeks. Before I go, I water my vegetable garden one last time and notice that everything is green and healthy. When I get back from my vacation, I notice that all the vegetables have gone brown and are dead. What inference can I make based on my observations?

The plants didn't get enough water.

It rained everyday I was gone on my vacation.

I am in the lab seeing if adding sugar to water affects how long it takes the water to boil. In the first test I boil 100 mL of water only in a beaker over a Bunsen burner and observe it takes 5:15 mins to boil. Next I add 2 grams of sugar to 100 mL of water and stir to dissolve, then boil making sure everything is the same. This time it takes 7:05 mins to boil the sugar-water mix. Next I add 4 grams of sugar to 100 mL of water. This time it takes 10:35 mins to boil the sugar-water mix. What could we infer about the effect sugar has on the boiling time of water?

Adding sugar increases the time it takes to boil water.

Sugar has no effect on how long it takes to boil water.

It took 10:35 mins to boil water when 4 grams of sugar were added.

It took 7:05 mins to boil water when 2 grams of sugar were added.

A student placed 50 mealworms in the middle of an aquarium containing a light, a cardboard tube and a water dish. He waited five minutes and then recorded the data for the first trial in the table above. The student repeated this procedure two more times, and recorded the results. Read the results of all three trials. Which inference could you make about mealworms based on the results.

The mealworms probably prefer the darkness of a cardboard tube.

There were 6 mealworms under the light in trial 2.

There were 36 more mealworms in the cardboard tube versus the light in trial 3.

Inference and Observations

Authored by Charles Martinez

Science

5th - 6th Grade

NGSS covered

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MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What is an observation? A good scientist is observant and notices things in the world. This leads to curiousity!

Information gathered using the 5 senses

A question based on past experience

A prediction

Information that only comes from measurements

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Data that is descriptive, using qualities or characteristics, and your 5 senses is called...

quantitative

qualitative

non-scientific

hypothesis

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

When scientists collect data that is measurable with numbers, we call it...

qualitative

quantitative

hypothetical

graphable

The flowers are pink and yellow.

Qualitative

Quantitative

MULTIPLE CHOICE QUESTION

1 min • 1 pt

There are 4 trees in the forest.

Qualitative

Quantitative

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The clouds are grey and ground is wet.

Qualitative

Quantitative

There are seven buttons on the table.

Qualitative

Quantitative

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Inference and Observations

What is an observation? A good scientist is observant and notices things in the world. This leads to curiousity!

Data that is descriptive, using qualities or characteristics, and your 5 senses is called...

When scientists collect data that is measurable with numbers, we call it...

The flowers are pink and yellow.

There are 4 trees in the forest.

The clouds are grey and ground is wet.

There are seven buttons on the table.

The football players are wearing red and white.

There are eleven tourists.

The beaker has 300 milliliters of water.

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