Earth and Space
What are the two types of weathering?
Physical and chemical.
Which is a good conductor of electricity?
Glass, wood, dry air, or tap water?
Tap water.
True or false: mammals, reptiles, and amphibians are vertebrates.
True.
Which body part does a snake use to smell its environment?
Tongue.
What do fish use to breathe underwater?
Gills.
What does a volcanic eruption lead to?
Organisms could become extinct.
What happens when a person touches a charged object with a finger?
Mild shock.
What happens to a plant when it does not get enough water?
Wilts.
Why do bears hibernate during winter?
To save energy.
With spores.
A mountain is located in a windy and rainy region. After millions of years, the shape of this mountain changed from sharp to smooth.
What natural slow process caused this change in shape?
Physical weathering.
What vibrates in a piano and a guitar to produce sound?
Strings.
Which plants lose their leaves in autumn?
Deciduous.
Where do the spore clusters of ferns form?
A bee dances to tell other bees that it found food. What is this an example of?
Inherited feeding behavior.
A mountain is located in a windy and rainy region. After millions of years, the shape of this mountain changed from sharp to smooth.
Which two agents caused this change?
Water and wind.
A north pole of one magnet and a south pole of another magnet attract one another. How does distance between the two magnets affect the force between them?
It becomes weaker (the farther they are apart).
Fossils of fish have been found on mountaintops. What does this clue tell scientists?
These rocks were underwater at one time.
Green beetles are camouflaged by grass. How is this an advantage?
They can survive and not be eaten by birds.
Color of a flower and shape of leaf are examples of...
Plant traits.
A mountain is located in a windy and rainy region. After millions of years, the shape of this mountain changed from sharp to smooth.
Describe how the two agents changed the shape of this mountain.
Wind: blows and carries rocks/sand that scrape at the mountain (acts like sandpaper).
Water: passes through cracks in rocks and if it freezes, it will expand, breaking the rocks into smaller fragments.
Identify the form of energy produced by each of the following devices:
Light Bulb -
Toaster -
Buzzer -
Light energy
Thermal energy
Sound energy
Scientists compared dinosaur fossils to modern-day birds. Some dinosaur fossils had feathers. What did scientists conclude about these dinosaurs?
Over time, they became more birdlike.
The long beak of a hummingbird allows it to collect food from narrow flower, helping it survive. What type of adaptation is the shape of the beak?
Physical.
Dan planted a young tomato plant in 2 pots. He placed pot 1 in the sun and pot 2 in the dark. The tomato plant in pot 2 died. Why?
It was not able to make food by photosynthesis. Plants need sunlight to live.