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WorksheetsCan I believe my eyes? IQWST PS1 LS1 (lessons 1-5)
Total questions: 50
Worksheet time: 2hrs 23mins
Some light bounces off it to your eyes.
Can there be different kinds of models for the same thing?
No, there's only one way to model things.
Yes, you can use different materials to create models.
When lights are turned off in a room, my pupils...
stay the same size
get smaller
get larger
The black hole in the center of the iris; the opening that allows light to enter the eye
Retina
Pupil
Optic Nerve
Which part of the eye converts the light into an electric signal?
Retina
Pupil
Optic Nerve
Which part of the eye focuses the light when objects are near or far?
Lens
Retina
Cornea
In order to see an object, we need:
Object, eye, light, direct path between object and eye
Light, eyes, direct path between object and eye
Object, eyes, direct path between object and eye
Eyes, object, blocked path, light
How does light travel?
in every direction
In a car
in curvy paths
Teleportation
Which part is letter D?
iris
cornea
retina
lens
Which part is Letter B?
pupil
iris
cornea
lens
Which part is letter A?
pupil
iris
cornea
lens
Which part is letter E?
sclera
optic nerve
cornea
retina
This structure is the clear, protective coating over the whole eye.
Cornea
Lens
Retina
Optic Nerve
This structure is the colored part of the eye.
Pupil
Iris
Retina
Optic Nerve
What is letter D pointing to?
Lens
Optic Nerve
Iris
Cornea
What is letter E pointing to?
Cornea
Iris
Optic Nerve
Pupil
What is letter C pointing to?
Cornea
Iris
Optic Nerve
Lens
What is letter B pointing to?
Lens
Iris
Pupil
Optic Nerve
What is letter F pointing to?
Optic Nerve
Retina
Iris
Pupil
How does light travel?
in a wavy path
Light continues traveling until it reaches an object.
in a zig zag path
the colored part of the eye that decides amount of light that enters the eye.
Pupil
Iris
Retina
Optic Nerve
Which condition prevents the little girl from seeing the car?
Object
Eye
Light source
Direct Path between the object and the eye
Why does a light source appear LESS bright when the light source is further from the eye?
Light spreads out as it gets farther away from its source.
Light move very fast.
Light bounces off of things in the room.
Light travels in straight lines.
Circle all of the following statements that are true about light.
Light travels in straight lines.
Light moves very slowly.
Light moves out in all directions away from a light source.
Light is continuous until it reaches an object.
Why do the pupils of a human’s eyes get smaller in bright lights?
To let less light in.
To let more light in.
Why do the pupils of a human’s eyes get larger in darkness?
To let less light in.
To let more light in.
Why does a light source appear brighter when the light source is closer to the eye?
Because the light has spread out more.
Because the light has spread out less.
Because the light becomes more bright.
Because the light becomes less bright.
The giant sea squid can see when it is completely dark, because it has the largest eyes in the animal kingdom.
True
False
Shadows always...
Have outlines different from the object.
Are on the same side as the light or in front of the object.
Are smaller than the object.
Are on the opposite side of the light or behind the object.
Shadows always...
Have outlines different from the object.
Are on the same side as the light or in front of the object.
Are smaller than the object.
Are larger than the object.
Shadows always...
Have outlines different from the object.
Are on the same side as the light or in front of the object.
Are smaller than the object.
Have outlines same as the object.
Using the image provided tell me why the person can see the sun.
There is a clear unblocked path between the person and the sun.
The tree absorbs the sunlight.
The tree is blocking the path of light.
The person is not looking in the right direction.
Describe how we would be able to see the boy’s shadow.
We can only see the light that bounces from the area around the shadow.
We can see the shadow itself.
Why does light appear to be less bright when you are farther from a light source?
More light reaches your eye.
Your pupil gets larger with more light.
Because the light becomes less bright.
Light spreads out and less light reaches your eye.
When we look at a book in the sunlight, the light must bounce off the book and from there enter our eyes to see the book.
True
False
Models cannot be revised as scientist’s learn more.
True
False
A model needs to be consistent with all the evidence
True
False
On a bright sunny day, your eye's pupils get bigger to let more light in.
True
False
Light must enter your eye to be seen/detected.
True
False
Light Travels in straight lines.
True
False
Which part of the eye helps focus light onto the retina?
Cornea
Lens
Iris
Pupil
What happens to the size of a shadow when the light source moves closer to the object?
The shadow disappears.
The shadow stays the same size.
The shadow gets smaller.
The shadow gets larger.
Which statement best explains why we cannot see objects in a completely dark room?
Light travels too slowly in the dark.
Objects become invisible in darkness.
Our eyes are closed in the dark.
There is no light to reflect off the objects into our eyes.
Which part of the eye controls the amount of light entering the eye?
Cornea
Lens
Retina
Iris
What happens to a shadow when the light source moves closer to the object?
The shadow becomes larger.
The shadow disappears.
The shadow becomes smaller.
The shadow changes color.
Which statement best describes how we see objects?
We can see objects only in the dark.
Objects are visible only when they are moving.
Light bounces off objects and enters our eyes.
Objects create their own light that enters our eyes.
Which part of the eye sends visual information to the brain?
Cornea
Optic Nerve
Lens
Iris
