Living Environment
A dialysis machine can be used to remove waste from a patient’s blood. Which human body system works in a similar way?
excretory
Approximately how long does it take for the Moon to complete one orbit around Earth?
1 month
A substance in the liquid phase (state) of matter has what in terms of shape and volume?
No definite shape, definite volume
Which force will decrease if the surface of the ramp is made smoother?
Friction
Name three non-renewable types of energy?
Coal, oil, and natural gas
Which two human body systems work directly together to allow locomotion?
skeletal and muscular
What caused the formation of these mountain ranges?
collision of lithospheric tectonic plates
Which process causes water droplets to form on the outside of the glass?
Condensation
Which type of energy is transferred from one object to another by simple machines?
Mechanical
Which process transfers heat when particles collide in a solid?
Conduction
In which part of a plant cell does photosynthesis occur?
leaves
Scientists have discovered fossils of the same organisms in many different parts of the world. These fossils provide evidence that
the continents were once joined together
People often wear sunglasses in polar regions because most of the sunlight that strikes a snow-covered surface is
Reflected
A battery-powered cart pulls an 800-gram load across the floor. If the load were reduced to 400 grams, and the force used to move the cart remained the same, the cart would
be half
Which outcome is most likely if a person consumes more Calories than needed for daily activities
They will gain weight
What eventually happens to a species when the environment changes and the organisms do not adapt?
extinction
Which geologic process occurs when the acid in precipitation dissolves certain types of rock?
weathering
Sound waves are not able to travel through
A Vacuum
In a car accident, a seat belt helps prevent injuries by applying a force in what direction to the motion of the car?
in the opposite direction of the passenger’s motion
Which greenhouse gas has the greatest effect on the weather conditions associated with an air mass?
water vapor
Which process is a cause of variation in a species?
sexual reproduction
The amount of which greenhouse gas in the air will increase the most if large forests are cut down to be used for building materials without planting new trees in their place?
Carbon Dioxide
The equation below shows the products formed when a solution of silver nitrate (AgNO3) reacts with a solution of sodium chloride (NaCl). AgNO3 NaCl → NaNO3 AgCl (Reactants) (Products) In this equation, the total mass of the reactants is
Equal to the products
The force of gravitational attraction between two objects depends on the distance between the objects and their
Mass
The actual position of the fish is different from the apparent position of the fish because as light travels from the water into the air, the light is
Refracted