WorksheetsAmplify Science - U2Ch3 Test - 4th Grade
Total questions: 15
Worksheet time: 1hrs 20mins
What is one reason scientists would use a model?
To understand something that is hard to observe
To make money by selling them
To have fun drawing a picture
To understand that science takes time
In this SIM, what was one variable we could change?
We could change how smart the brain was
We could change the size of the predator's pupil
We could make the prey fly
We could change between day and night
Which animal is an example of a predator?
Elephant
Shark
Deer
Fish
When scientists are doing an investigation, how many variables should they change at a time?
Zero
One
Two
Three
In this model of an eye, which 2 parts can we label?
Pupil
Eyelash
Light bouncers
Light receptors
If light travels from a source directly to the predator's eye, will it be able to see its prey?
Yes, and it will get hungry
Yes, and it will want to catch it
No, it will be blinded by the light
No, it will be too dark
Which word means "to cause light to bounce off a material"?
Light receptors
Reflect
Evidence
Variable
When scientists write an explanation, they must _____.
Start at the end and go backwards
Tell a fun and exciting story
State an opinion and give evidence
Tell all the steps in order
What is the function of a pupil?
To let light into an animal's eye.
To send information to the brain.
To help an animal think about how to react.
To compare new information to memories.
What is the function of light receptors?
To let light into an animal's eye.
To reflect light off of a prey.
To help an animal think about how to react.
To receive light and absorb light from an environment.
What is the function of the brain?
To let light into an animal's eye.
To send information to the brain.
To help an animal think about how to react.
To compare new information to memories.
Once information travels to the brain, it ____________ the information so a predator knows how to react.
transfers
processes
stores
reflects
The structure that connects the light receptors to the brain is called the___________.
brain
light receptors
pupil
optic nerve
The two types of prey in this chapter were safe and _____.
insect
toxic
disgusting
tokay gecko
What did we learn by reading the book Crow Scientist?
Crows have very bad vision
Crows are angry and scary
Crows can understand when people talk
Crows can recognize people's faces
