Light
When light bounces off a surface, it is called this.
Answer: reflection
Sound is made by these.
Vibrations
How does a habitat help a living thing survive?
provides food, water, shelter, and space
Why do we have day and night on Earth?
Answer: What is because Earth rotates on its axis?
This force pulls everything down toward Earth.
gravity
True or False: Reflection happens when light bends.
False
Why can sound travel through a desk better than through the air?
Because particles in a solid are closer together, so vibrations travel more easily?
Why do different animals live in different habitats?
because each animal needs a habitat that meets its needs
Why do we see the Moon shining at night even though it is not a star?
Answer: What is because it reflects light from the Sun?
This happens when the Moon moves between the Sun and Earth.
solar eclipse
If you see your face in a mirror, which property of light is being shown?
Reflection
Why can sound not travel in outer space?
Because there are no particles there for the vibrations to travel through?
Why would a polar bear not survive well in a desert habitat?
Because its body is adapted for cold Arctic habitats, not hot dry deserts?
Why is Pluto not called a major planet anymore?
Answer: What is because it is a dwarf planet?
This part of a plant carries water from the roots to the leaves.
stem
When light bends as it passes through water or glass, it is called this.
refraction
Why do we hear thunder after we see lightning?
Because light travels faster than sound?
Some animals in the deep ocean make their own light to help them survive. What is this called?
bioluminescence
Why do planets not crash into the Sun?
Answer: What is because they move in orbits around the Sun?
This material does not let electricity pass through easily.
insulator
Why does a pencil look bent when it is placed in a glass of water?
Because light bends when it moves from air to water, and this is called refraction?
This is the system bats and dolphins use to find objects by sending out sounds and listening for echoes.
Echolocation
These tiny living things drift in the ocean and are an important food source for many sea animals.
planktons
Why do we always see the same side of the Moon from Earth?
Answer: What is because the Moon rotates at the same speed that it orbits Earth?
This kind of rock is formed from cooled lava or magma.
igneous rocks