Constructive and Destructive Forces
What causes water to flow downhill?
gravity
What is a characteristic is shared by a goldfish, a parrot, and a snake?
they all have a backbone
A student wants to examine the organelles of cells that make up a leaf. How can the student see the organelles?
microscope
Which of these materials is a conductor?
rubber, glass, plastic, copper
copper
Which state of matter has a fixed volume, but not a fixed shape?
liquid
What is weathering?
the picking up and moving of rock pieces from one place to another.
A student wants to classify plants around his school based on how the plants reproduce. Which plant parts should the student use to sort the plants?
spores and seeds
What is the function of the cell membrane?
it controls what enters and leaves the cell
In which part of a circuit is electrical energy changed into other forms of energy?
Load
What is a physical change to a substance?
change in the physical property: mass, shape, texture
Deposition is a process that
drops rock particles to new places.
An inherited physical trait is?
a characteristic a living thing gets from its parents
What two organelles does the plant cell have that the animal cell does not?
A scientist wants to design a new hair dryer. Which would be the BEST material to use for the handle of the hair dryer?
A. Iron
B. Silver
C. Rubber
D. Aluminum
Rubber
How can you cause a chemical reaction in bread dough?
heat it
How are dams and levees alike?
Both control floods
A dog has black fur with brown spots, a good sense of smell, a chipped tooth, and four legs. Which of these characteristics is an acquired physical trait?
Chipped Tooth
Which microorganisms release oxygen into the air?
algae
True or False: All magnets have a north and a south pole?
True
What is an example of a chemical property?
rusting, change in color, different odor, bubbles form
How are earthquakes and volcanoes alike?
They are both constructive and destructive processes
A student sees a mother animal and its baby. The animals have fur. The baby is drinking milk from its mother. How should the student classify the animals?
as mammals
__________ that live in mosquitoes can cause people to get a disease called malaria.
Protozoa
A student has four items - an iron bar, a light bulb, a battery, and wire. Which of these items does the student need to make an electromagnet?
battery, iron bar, wire
A student wants to make water vapor condense. What must the student do to the water vapor?
cool it