Which bird has a beak that is best adapted for cracking seeds?
an eagle, an ostrich, a hummingbird, or a sparrow?
What is sparrow?
An airplane is slowing down and flying lower as it prepares to land at an airport. Which statement best describes the energy of the airplane?
The kinetic energy decreases, and the potential energy increases.
The kinetic energy increases, and the potential energy decreases.
The kinetic energy decreases, and the potential energy decreases.
What is the kinetic energy decreases, and the potential energy decreases.
Which statement best describes photosynthesis?
A process of using sunlight to make food from carbon dioxide and water
A process of breaking down materials by wind, water, or temperature change
A process of changing from an immature form to an adult form
A process of forming clouds through evaporation and condensation
What is the process of using light to make food from carbon dioxide and water?
This is an example of a fossil fuel used for heating buildings and producing energy.
geothermal
solar
coal
nuclear
What is coal?
Which human activity would most threaten the survival of a species that lives in a river?
planting native trees near the river
collecting water samples from the river
using pesticides on farmland near the river
measuring the water temperature of the river
What is using pesticides?
This is a push or pull from one object to another.
friction
gravity
force
magnet
What is a force?
A certain type of mite is a parasite of honeybees. Which statement best describes the relationship between the mites and the bees?
The mites harm the bees by feeding on their blood.
The mites get honey in return for helping the bees stay healthy.
The mites live in the hive of the bees but do not interact with the bees.
What is The mites harm the bees by feeding on their blood?
After moving over a mountain range, an air mass has very little moisture left. Therefore, one side of the mountain may be very green and lush, while the opposite side is very dry very little vegetation. This is known as
the Coriolis effect
the rainshadow effect
the Doppler effect
What is the rainshadow effect?
A log in the bottom of a fireplace has this type of energy.
gravitational potential
elastic potential
chemical potential
kinetic
What is chemical potential energy?
Space telescopes helped improve our understanding of outer space by advancing our ability to:
take samples from objects in space.
travel farther into space.
communicate into space.
observe objects farther in space.
What is observe objects farther in space?
Which force holds the atmosphere of Earth in place? electricity
magnetism
gravity
acceleration
What is gravity
Newton’s understanding of gravity was important for the development of which technology?
A satellite that orbits Earth
A car powered with corn oil
Robots that help with daily tasks
Instruments that detect radio waves coming from space
What is a satellite that orbits Earth
Which adaptation would best help an animal survive a cold, dry tundra?
scaly skin
long tail
thick fat layer
large, round eyes
What is a thick fat layer?
Small pieces of ice are broken off a large block of ice. Compared to the block of ice, the pieces of ice will completely melt:
faster than the block of ice.
slower than the block of ice.
at a higher temperature than the block of ice.
at the same rate as the block of ice.
What is faster than the block of ice.
Which best describes how a hawk obtains energy differently than an oak tree?
The hawk absorbs energy from the sun.
The hawk absorbs energy from the soil.
The hawk breathes in carbon dioxide.
The hawk consumes other organisms.
What is the hawk consumes other organisms?
Which would most likely cause a substance to melt? addition of heat
removal of heat
increase in mass
decrease in mass
What is addition of heat?
A vulture eats a dead rabbit that was killed earlier by a coyote. Which best describes the role of the vulture?
predator
scavenger
parasite
decomposer
What is a scavenger?
Which of these is most likely to begin the process of primary succession?
oak trees
grasses
lichens and mosses
insects
What is lichens and mosses?
After a student throws a ball up in the air, the ball falls down to the ground. Which type of force always acts upon the ball to pull the ball to the ground?
electrical
frictional
magnetic
gravitational
What is gravitational ?
Which best describes why cities near oceans are often warmer in the winter than cities far from the ocean at the same latitude?
Oceans cool more slowly than land.
Ocean tides are highest in the winter.
The moon heats the air over the ocean.
Ocean waves move more quickly in the winter.
What is oceans cool more slowly than land?
As a city’s population grows, wooded areas are replaced by housing developments. What effect would this most likely have on the species that live in the wooded areas?
What is the population of some species will decrease or become zero?
Scientists have been experimenting with ways to preserve foods due to high spoilage rates. In which way can scientists use low levels of radiation to make food safer?
precook food with radiation before it is packaged
use radiation to increase nutrients in food
pass food through radiation to kill harmful bacteria
expose food to radiation to improve taste
What is pass food through radiation to kill harmful bacteria?
Lichens are made of fungi and algae that benefit from growing together. Which of these best describes this relationship?
parasitic
commensal
competitive
mutualistic
What is mutualistic?
What process forms clouds?
Evaporation
Condensation
Precipitation
Runoff
What is condensation?
There are three states of matter. What state of matter has a fixed shape and size?
liquid
plasma
solid
gas
What is a solid?.