Skip to content
Your progress

Checking your sign-in…

Who's learning?

Each profile keeps its own read lessons, badges, streak, and practice scores on this device.

Lesson 1 of 9

Looking closely

Show on a big screen

5 min

Text size

A dog barks at the gate. Is someone there?

Loading lab…

The idea

We only heard a bark. So "someone is there" is a guess.

An observation is what your senses tell you right now. You see it, hear it, feel it or smell it.

An inference is a guess made from an observation. You did not sense it yourself.

One scene, two kinds of statement
Observation (sensed)Inference (guessed)
Grey clouds fill the sky.It will rain soon.
Steam leaves the tiffin box.The food is hot.
The dog is barking.Someone is at the gate.

Scientists check each guess with a new observation.

Try the lab to finish this lesson.