Mixture/Solution
Mixture/Solution
Mixture/Solution
Water Cycle
Pollution
100
A student observed several samples of materials mixed together in glass beakers. Which of the following samples is a solution?
A Soil mixed with pebbles
B Sugar stirred into hot tea
C Sand combined with water
D A collection metal and wooden buttons
Sugar stirred into hot tea
100
All of the items below are mixtures.
Which of the following is true of each mixture above?
A Each mixture is also a solution.
B Each mixture has a part that dissolves.
C Each mixture can be separated physically.
D Each mixture has the same physical properties.
C Each mixture can be separated physically.
100
A student organized a list of food items he wanted to bring to his class picnic. Each of the items is a type of mixture. The items are listed below:
- trail mix
- lemonade
- assorted nuts
- vegetable salad
Which of the food items is a solution?
A Trail Mix
B Lemonade
C Assorted Nuts
D Vegetable salad
B Lemonade
100
What causes water droplets to form on a cold glass on a hot day?
Condensation — water vapor cools and turns into liquid on the glass.
100
What is pollution?
Pollution happens when harmful materials get into the air, water, or land and make it dirty or unsafe.
200
A student filled two graduated cylinders with water and then dissolved a sugar cube into each sample.
What is one way the samples will be different?
A Sample 1 will be warmer.
B Sample 2 will be darker in color.
C Sample 2 will lose volume.
D Sample 1 will taste sweeter.
D Sample 1 will taste sweeter.
200
How are a bowl of salad without dressing and a bowl of vegetable soup different?
A The salad mixture is uniform, while the soup is non-uniform.
B Some of the material in the soup has dissolved, while nothing in the salad has dissolved.
C The soup mixture is uniform, while the salad is non-uniform.
D The salad mixture is made from two states of matter, while the soup is only one state of matter.
B Some of the material in the soup has dissolved, while nothing in the salad has dissolved.
200
When riding a bicycle, which force most likely causes the bicycle to move forward?
A Gravity pulling the bike down to the ground
B Magnetism between the wheels and pedals
C Pushing the pedals
D Pulling the pedals
C Pushing the pedals
200
How does the Sun play a role in both evaporation and transpiration?
The Sun’s heat causes water to evaporate and also gives plants energy to release water through transpiration.
200
What kinds of pollutants might runoff carry into waterways after a storm?
Oil, fertilizer, pesticides, litter, and animal waste.
300
Which force most likely helps players score points in a basketball game?
A Friction
B Pulling
C Magnetism
D Gravity
D Gravity
300
Wendi placed 5 grams of wood chips in a bowl and added 20 grams of marbles. How can it be explained that the mixture is now 25 grams?
A The total mass of a mixture is always less than its parts.
B The total mass of a mixture equals the sum of its parts.
C The total mass of a mixture is always greater than its parts.
D The mass of the mixture cannot be measured
B The total mass of a mixture equals the sum of its parts.
300
A man is kayaking in a river for a fun day of fishing. How does using the paddle affect the motion of the boat?
A Pulling the paddle causes the boat to move in the opposite direction of the pull.
B Pulling the paddle causes the boat to move in the same direction of the pull.
C Gravity causes the boat to move when the paddle is lowered down into the water.
D The friction between the paddle and water cause the boat to move forward.
A Pulling the paddle causes the boat to move in the opposite direction of the pull.
300
When water runs off streets and sidewalks, where does it usually go?
It flows into storm drains, rivers, or lakes, and can eventually reach the ocean.
300
What causes air pollution?
Give at LEAST TWO examples!
Smoke from cars, factories, and fires puts harmful gases and particles into the air.
400
A student wants to test the force of magnetism by placing objects on top of a piece of cardboard and then moving them with a magnet placed under the cardboard. Which items will help the student with this investigation?
A A paper clip, a thumbtack, and a toothpick
B A paper clip, a penny, and iron filings
C A piece of foil, iron filings, and a nail
D A nail, a paper clip, and a thumbtack
D A nail, a paper clip, and a thumbtack
400
A student wanted to see how his toy car would roll on different types of flooring. She decided to roll the car on a tile floor, a wood floor, and a carpeted floor.
Her investigation was designed to test the effects of which of the following forces?
A Gravity
B Gravity and magnetism
C Magnetism and friction
D Friction
D Friction
400
A worker is constructing playground equipment for the park and dropped a box of nails and bolts. How will a magnet be helpful to the builder?
A Gravity will cause the magnet to pick up the nails and bolts.
B Friction will cause the magnet to push away the nails and bolts.
C The magnet will push the nails and bolts away from it.
D The magnet will pull the nails and bolts toward it.
D The magnet will pull the nails and bolts toward it.
400
How are evaporation and transpiration alike
Both change liquid water into water vapor and move it into the air
400
How can pollution travel from land to water?
Rainwater and runoff can wash trash and chemicals into rivers and oceans.
500
A student is mixing sugar and water. The student needs 1200 grams of the mixture. The student has 200 grams of sugar.
How many grams of water does the student need to make the mixture?
1,000
500
Caitlyn measured 200 mL of water and poured the water into a plastic container with a lid. She recorded the mass of the container and placed it into the freezer for 8 hours. When she removed the container, she observed that the ice had a larger volume than the water, but the mass stayed the same. What can be determined from this experiment?
Select TWO correct answers.
A Water molecules move away from each other as they freeze causing the volume to increase.
B The amount of energy in the water increases when it is frozen.
C The amount of matter in the water increases when it is frozen.
D Although the volume changed, the mass remained the same when it changed from a liquid to a solid.
A Water molecules move away from each other as they freeze causing the volume to increase.
D Although the volume changed, the mass remained the same when it changed from a liquid to a solid.
500
A student wants to see how the size of an iron ball is affected by gravity. Which of the following would have to remain the same for the investigation to be successful?
A Mass and volume
B Material used and shape of object
C Mass and shape of object
D Volume and material used
B Material used and shape of object
500
After rain falls on the land, what is it called when water flows over the ground into rivers and lakes?
Runoff
500
What could happen to the water cycle if the air is polluted with chemicals?
Polluted air can cause acid rain, which can damage plants, soil, and water sources.