Properties of Matter
A student held a popsicle as she watched a baseball game outdoors. After a few minutes, the popsicle started to drip.
What caused the popsicle to drip?
Heat from the sun changed the popsicle from a solid to a liquid.
Clear glasses were filled with water. They were placed in front of some limes. If someone were to view the limes through the glasses, they seemed distorted. What caused this to happen?
Light rays are refracted by water.
X - Coal, natural gas, & petroleum
Y - Water, wind, & biomass
Which of the following titles best fits column Y on the table above?
a) Renewable Resourse
b) Usable Resouces
c) Unlimited Resources
d) Nonrenewable Resources
a) Renewable Resources
Some characteristics of a specific oryx are described.
- White coat reflects the sun
- Dark legs absorb heat on cold nights
- Will eat roots when no other plants are available
- Rests in shaded areas
- Can go weeks without much water
Based on this description, in which ecosystem would the oryx most likely live?
The desert.
The record snowfall for Olympia, Washington is 60.1 inches on December 31st, 1999.
Does this statement reflect weather or climate?
Weather
When sugar dissolve in water, which physical property of sugar does NOT change?
The mass of the sugar.
A student recorded time it too for all the water in a puddle on a sidewalk to evaporate after a rain. Which kinds of energy causes water to evaporate?
Thermal energy from the environment.
Sand dunes are large landforms usually found in desserts. What process forms sand dunes?
Deposition of sediments by wind
The overpopulation of grazers of grazers, such as deer or cattle, can haver several impacts on an ecosystem. What is NOT an example of the potential effects of overpopulation of grazers on the ecosystem?
a) Increase in competition for the available food
b) Decrease in vegetation
c) Increase of overall plant diversity
d) Soil erosion as the soil becomes exposed
c) Increase of overall plant diversity
Which event in the water cycle is caused by the sun?
Evaporation
What physical property would you depend on to easily separate paper clips from the sand?
Light bounces all over the place and never travels in a straight
a) Renewable Resources
U-shaped valleys
Axolotls are aquatic salamanders native to Mexico that are often kept as pets. Which observation describes axolotls interacting with a living element of their ecosystem?
a) axolotls require high quality of water in their tanks
b) axolotls require low levels of light
c) axolotls require hiding places such as rocks
d) axolotls require a carnivorous diet including brine shrimp
d) axolotls require a carnivorous diet including brine shrimp
Which inherited trait does a striped cat most likely share with its parents?
a) using a litterbox
b) eating from a plate
c) chasing a light
d) having striped fur
d) having striped fur
Mixtures
Beaker 1 - pebbles & sand
Beaker 2 - sand & water
Beaker 3 - water & salt
Beaker 4 - salt & iron fillings
Based on the information above, which of the mixtures best maintains all of the physical properties of their ingredients?
Beakers 1, 2, & 4
What explains why a coin at the bottom of a pool of water seems closer to the surface than it really is?
a) Light reflects from the surface of the water.
b) Light reflected from the coin changes direction as it leaves the water.
c) Light travels only in a straight line after being reflected.
d) Light reflected from the coin is absorbed by the water.
___________ is the breaking down of sediment.
Weathering
Egg > Larva > Pupa > Adult
a) lacewings
b) lizard
c) human
d) eagle
a) lacewings
The sun appears to set in the east everyday.
true or false
false
When an object sinks to the bottom of a pool, it is because it is less dense than water.
True or False
For a class demonstration a student turned off the lights in the classroom. The student then shined light from a flashlight through a hole in a piece of cardboard. The class saw the narrow beam of light continue until another student placed a mirror in the light's path.
The light did not continue past the mirror because -
The light was reflected by the mirror, and the light travels in a straight line and cannot go around objects.
A delta is a triangular shape at the mouth of a river the is formed when __________ is deposited as the water slows down as it enters the ocean.
sediments
Which of the following is most likely a learned behavior of a camel?
a) ability to withstand extreme temperature
b) ability to carry loads over long distances
c) ability to run on sand
d) ability to defend themselves by spitting or kicking when threatened
b) ability to carry loads over long distances
What are the two main factors in the rock cycle?
Wind and water