The light-reflecting materials like_______
paper
mirrors
plastic
Fish extracts oxygen out of the water by ...................
fins
gills
skin
Raise the thumb up or lower it down a kind of ___
codes
colors
waves
Adel wanted to make a suitable box through which he could see what was inside without having to open it. What material should be used?
transparent plastic.
Wood
carton
One of the behavioral adaptations that help the animal protect itself from enemies __
blend in
extinction
reproduction
Which of these examples of hid or a camouflage?
the fox is golden like its environment.
Camel hump
Camel broad feet
All of the following are components of the nervous system except____
brain
nerves
heart
Each of the following is considered a source of light except .........
the lamp
the sun
the eye
When you determine a sweet or bitter taste, you have used___
the ear
the tongue
the nose
Surface that regularly reflects light ...............
dark with impurities
rough and dark
smooth and shiny
Sameh drives his bike and while that he hears a car behind him, he turns away so as not to hit it. The system that received a signal made Sameh realize that is .....
the digestive system
the nervous system
the circulatory system
When you put your hand on a hot surface, the brain sends a message to the muscles and the action that comes from you immediately after it is to...
You will do nothing
Keep placing your hand
pull your hand away from a hot
Adaptations include changes that ...............in the environment.
improve species survival
reduce life span for individuals
reduce reproduction process
What is adaptation?
Feature owned by living things to help them survive.
The process by which new species appear.
A process of getting rid of harmful substances in living things.
The ability to turn the head in all directions ,....................
dolphins
owl
Snakes
Our eyes help us see what's around us. What is the organ responsible for perceiving what we see with our eyes? ...........
The brain
The stomach
The esophagus.
Eagle is bird of prey (who eats meat). Its beak is strong and sharp. This structural adaptation helps it to .....................
escape.
find a shelter
ripping meat
To communicate through the sense of sight we need ............ ;
hearing music
availability of light
making sound
.............. panting to lower her body temperature.
Bats
Foxes
Lions
The organ responsible for the sense of sight____
Which of the following allows pass the light through it?
glass
wood
moon
_____Your sensation of hot weather depends on sensory receptors in the
eare
nose
Humpback whales use singing for...............
having fun with whales
communication
hide from enemies
Animals that live in a hot environment have ........................ ears to help her, and allow heat to escape to be cool.
short
small
long
What happens to living things that can't adapt to the conditions of its environment
they can survive in the environment
keep their number constant
they can't stay in the environment
Stomach is a part of the digestive system that ..........
absorbs nutrients from food
delivers food into the esophagus.
converts solid food into liquid
When light falls on a dark surface_____
the light is refracted
light passes through it.
the surface absorbs the light
What feature of light helps you see yourself in the mirror?
short rays
refraction
reflection
Animals can communicate with each other through____
writing
talk
sounds and lights
Animals can communicate with each other by... ......
Writing.
reading.
the Sound