Physical Science
Earth Science
Space Science/Misc.
Life Science
Technology/Engineering
100
A teacher places four small cubes on a table in front of a science class. Each cube is the same size and is painted the same color. However, each is made of a different material. What tool could a student use to find the cube made of iron?
A magnet.
100
Water moves directly from a lake to the air by which of the following processes?
A. evaporation
B. condensation
C. precipitation
D. sedimentation
A. evaporation
100
Look at the picture of the island. Which process most likely caused the island to change over time?
A. earthquakes over many days B. hurricanes over several months C. rain and flooding over several years D. weathering and erosion over millions of years
D. weathering and erosion over millions of years. The island was changed by the slow processes of weathering and erosion. A and B both describe fast processes. While C does take several years, D is the best answer
100
Can you name the Life Processes that all living things experience?
100 points per Life Process (there are 7)
Movement
Respiration
Sensitivity
Growth
Reproduction
Excretion
Nutrition
100
Jim wants to build a birdhouse on top of a pole. In order to support the birdhouse, which property is the MOST important to consider? A. color B. length C. thickness D. temperature
C. thickness. None of the other answer choices have to do with support.
200
At the beginning of a science class, the teacher opened a small sealed jar and placed it on a table. The contents of the jar spread throughout the room during class.
Which of the following did the jar most likely contain?
A. cloth fibers B. oxygen gas
C. saltwater D. snowflakes
B. oxygen gas - Gases have no definite volume and fill up the space that they are given.
Solids have a definite volume and shape
Liquids have a definite volume and they take the shape of their container, filling it from bottom.
200
How does the decomposition of plant and animal matter help to form rich soils?
A. It adds silt to the soil
B. It adds water to the soil
C. It adds oxygen to the soil
D. It adds nutrients to the soil
D. It adds nutrients to the soil
When plants and animals break down (decompose), they release nutrients into the soil.
200
Earth participates in two different motions.
1) name both
2) tell me how long they take
3) tell me what they cause
1) rotation and revolution/orbit
2) rotation takes 24 hours and one revolution or orbit around the sun takes about 365 days
3) one rotation causes day and night while one revolution causes a year and seasons due to the tilt of the axis
200
Create a food chain from the following?:
hawk, mouse, snake, leaves, sun
sun -> leaves -> mouse -> snake -> hawk
BONUS (100 points): Where would a decomposer go in this food chain?
200
What percent of our water is readily available fresh water?
Why is this a problem?
1%
Humans have a negative impact on our readily available fresh water because we contribute to pollution. We do this by dumping trash and dumping chemicals.
300
When a student blows across a bottle, a sound is made. What causes that sound? A. Air vibrating inside the bottle B. Warm air heating the inside of the bottle C. Cool air moving away from the bottle D. Warm air mixing with cold air inside the bottle.
A. Air vibrating inside the bottle Sound is caused by vibrations in a medium (air, water, etc.)
300
I have two white substances in jars. One of them is flour and one is baking powder. I know that baking powder is soluble in water but flour is not. How could I tell which substance each is?
Trying to mix it with water to see if it dissolves (solubility!!!).
300
A student took pictures of the Moon on different days. Which set of pictures did the student take on Sunday, Wednesday, and Saturday of the same week? 
300
Why is it a problem for animal or plant species to go extinct? Name two reasons.
1) One reason that it is a problem for animal or plant species to go extinct is that whatever eats them will suffer because they will not have enough of a food source.
2) Another reason that it is a problem for animal or plant species to go extinct is that the population of whatever is eaten by that animal will rise because it doesn't have as much eating it.
300
A student glued two pieces of wood together. The student needs to hold the two pieces of wood together tightly until the glue is fully dry the next day. Which of the following tools is best for holding the two pieces of wood together until the glue is dry?
C. clamp
400
Three bar magnets are placed inside a plastic tube. Which of the following pictures best shows how the three bar magnets will move after being placed inside the tube?
C. Magnets with the same poles repel. Magnets with opposite poles attract.
400
How could water from Lake Erie eventually rain down on Boston?
The sun would heat the water and it would turn from a liquid to a gas in the process of EVAPORATION. This water vapor would rise into the air and cool. As it rose it would turn from a gas back to a liquid and form a cloud in the process of CONDENSATION. These clouds would be blown from over Lake Erie to over Boston. Once these clouds became heavy rain would fall over Boston in the process of PRECIPITATION.
400
Why does the sun appear to be the biggest star in our solar system?
It is the closest star to us so it appears to be the biggest. Even though it is NOT!
400
Where does all of the energy in an ecosystem come from?
The SUN
400
A small laundry room has several shelves above the washing machine. These shelves are an example of
A. making the wall stronger.
B. using storage space efficiently.
C. using a machine for more than one purpose.
D. solving the need for shelter in a creative way.
B. using storage space efficiently
500
Which of the following diagrams best represents how light travels from a flashlight to a piece of paper that is 40 cm away?
B. The light does not curve or bend. It travels in a straight line.
500
What do we use to tell substances apart?
Physical Properties (Can you name one?)
500
A student thinks that two trees in the woods have grown from seeds produced by the same parent tree. Which best supports this idea? A. both trees have broken branches. B. both trees have grass growing beneath them. C. both trees have white flowers with five petals. D. both trees have holes made by birds in their bark
C. Both trees have white petals with five flowers A, B, and D are all things caused by the environment. C is the only inherited trait.
500
What is the MAIN role of flowers on a flowering plant? A. take in air B. produce seeds C. absorb nutrients D. protect the stem
B. Produce seeds. Flowers are involved in reproduction. The leaves take in air and the roots absorb nutrients. The stem is protected by a waxy outer layer.
500
Which of the following properties best describes a material’s ability to resist scratching?
A. weight B. flexibility
C. length D. hardness
D. hardness