Water on Earth is able to exist in these three states.
What is solid, liquid, and gas?
100
This is the closest star to Earth/
What is the Sun?
100
A student filled a beaker with 100 ml of water. The student heated the beaker to boil the water. This is the name of the process that occurs when liquid water changes to vapor.
What is evaporation?
100
Look at the image, this pair of magnets will repel each other with the greatest force.
What is B?
100
All organisms need food to survive. This is the purpose of food for ALL organisms.
What is energy?
200
Which of the following is made from a renewable resource: steel beams, copper wire, fertilized soil, or plastic piping.
What is fertilized soil?
200
Planets in our solar system have different lengths of day. This is the cause of Earth's day lasting 24 hours.
What is the Earth's rotation on its axis?
200
A student fills three beakers with 100 ml of water. He places one of the beakers in the freezer. After three days he removes the beaker. What is the mass of the frozen water?
What is 100 ml?
200
Objects that are attracted by magnets are made of this material.
What is metal?
200
This is an organism made of more than one cell.
What is a multicellular organism?
300
List three physical properties used to describe rocks and minerals.
What are hardness, streak, luster, cleavage, density, color, and magnetism?
300
Planets in our solar system have different lengths of year. This is the cause of one year on Earth.
What is the Earth's revolution around the sun?
300
Materials combine chemically or physically. Which of the following combine to make a chemical change: salt and pepper; water and sugar; salt and water; baking soda and vinegar; or food coloring and water.
What is baking soda and vinegar?
300
(Look at the image) Which of the circuits shown will cause the light bulb to produce light?
What is A?
300
The snowshoe hare sheds its fur twice a year. In the summer months the hare's fur is brown. In the winter months the hare's fur is white. In addition to regulating the hare's temperature, what is the other benefit of this adaptation?
Camouflage / The hare is able to blend in better with its habitat.
400
The mountain chorus frog is an endangered species in Maryland. What is a likely cause for the decline in the frog's population. (Hint: people do not eat the frog.)
What are pollution and loss of habitat?
400
(Look at the image) Based on the Earth's rotation, this city will receive sunlight first each day.
What is Baltimore?
400
A 500 mg block of ice is left out in the sun to melt. What is the resulting mass of the liquid water?
What is 500 mg?
400
A student attempted to complete a circuit using the following materials: aluminum foil, a copper wire, a wooden stick, and a plastic fork. Only the copper wire worked. This property of copper allowed the student to complete the circuit.
What is copper conducts electricity?
400
Some plants and animals have adapted to live in desert conditions. All desert species are able to do this.
What is conserve water / energy?
500
The sun is the primary source of energy on Earth. Plants are producers, fungus such as mushrooms are decomposers, most animals (including crabs, bears, and hawks) are this.
What are consumers?
500
Why do some constellations appear in Maryland in summer but not winter?
What is the Earth's orbit around the sun?
500
The study of chemistry includes the changing states of matter. This process changes evaporated liquid into water.
What is condensation?
500
Gravity is a force that pulls objects toward the Earth. This is an opposing force (a push) that happens when two things rub against each other. This specific force slows things down, such as air molecules pushing against an airplane.
What is friction?
500
These are the preserved remains of plants or animals from the remote past. They are most commonly found in sedimentary rocks.