Mixtures
David is teaching his little sister how to make mixtures. He wants to show how some substances do not change when they are combined with other substances. Which example below should David use to demonstrate this type of mixture?
A. mud made out of dirt and water
B. cake batter
C. Trail mix made out of nuts, raisins, sunflower seeds, and chocolate chips.
D. a milk shake
C. Trail mix made out of nuts, raisins, sunflower seeds, and chocolate chips.
Mrs. Billing's science class is recording their observations of how the state of matter changes when it is heated or cooled. Which of the following observations is correct?
A. When water is in a gas state and is heated, it turns into a liquid.
B. When water is in a solid state and is cooled, it turns into a gas.
C. When water is in a liquid state and is heated, it turns into a gas.
D. When water is in a solid state and is cooled, it turns into a liquid.
C. When water is in a liquid state and is heated, it turns into a gas.
Amy gets a glass and fills it with ice cubes and water. What states of matter are the ice cubes and the water?
A. Both the ice cubes and the water are in a liquid state.
B. The ice cubes are in a solid state. and the water is in a liquid state.
C. The ice cubes are in a liquid state and the water is in a solid state.
D. Both the ice cubes and the water are in a solid state.
B. The ice cubes are in a solid state. and the water is in a liquid state.
Laurie walks into a dark room. She presses a switch on a lamp and the room brightens. Which form of energy brightened the room?
A. thermal
B. sound
C. light
D. mechanical
C. light
Which of the following lists the blocks in order from greatest mass to least mass?
(see picture)
C. is the correct response
Albert is looking at mixtures during a science experiment. Which mixture would be the easiest to separate?
A. sand and gravel
B. apples and bananas
C. oil and water
D. fruit in a fruit salad
B. apples and bananas
At a toy-making factory, plastic pellets are melted and then poured into toy shaped molds. When the plastic hardens, the mold is removed and a new toy part is made. What caused the changes to the plastic pellets that turn them into toy parts?
A. Heat turns solid plastic pellets into liquid. Cooling the liquid plastic in the mold turns the plastic back into a solid.
B. Heat turns solid plastic pellets into a gas. Cooling the plastic gas in the mold turns the plastic back into a solid.
C. Cold turns solid plastic pellets into liquid. Hearing the liquid plastic in the mold turns the plastic back into a solid.
D. Cold turns solid plastic pellets into a gas. Heating the plastic gas in the mold turns the plastic back into a solid.
A. Heat turns solid plastic pellets into liquid. Cooling the liquid plastic in the mold turns the plastic back into a solid.
Gasoline pumped into a car's gas tank is a liquid. What is one property of gasoline?
A. Gasoline's shape changes to fit the container.
B. Gasoline has a definite shape.
C. Gasoline has a changing volume.
D. Gasoline's shape will not change to fit a container.
A. Gasoline's shape changes to fit the container.
Lettuce is a green plant that uses energy from the Sun to make its own food. What form of energy does lettuce use?
A. Thermal energy from the sun to make it's own food
B. Sound energy from the sun to make its own food.
C. Light energy from the sun to make its own food.
D. Mechanical energy from the sun to make its own food.
C. Light energy to make it's own food.
1. Adam is dong a test to see what types of material float in water. He first puts a sealed, empty plastic bottle in the water. The bottle floats. He then fills the bottle with sand. After he completely fills the bottle with sand, he seals the bottle tightly. He puts the filled bottle in the water. He records in a table whether this bottle floats.
Based on the recorded results, which materials, when placed in a plastic water bottle, float?
(See picture.)
Cotton balls, feathers, oil
Which of the four items below is not a mixture?
A. box of 2 inch paperclips
B. chocolate bar with peanuts
C. bag of mixed vegetables
D. vegetable soup
A. box of 2 inch paperclips
Percy is using clay to make a vase in art class. He takes a wet lump of gray clay and shapes it into a vase. Then, the clay vase is heated in an oven. When the vase is taken out of the oven several hours later, the vase is dry and hard. What did the heat do to the clay vase in the oven?
A. The heat changed the water in the clay from a liquid into a solid.
B. The heat changed the water in the clay from a liquid into a gas.
C. The heat changed the clay from a solid into a liquid.
D. The heat changed the clay from a solid into a gas.
B. The heat changed the water in the clay from a liquid into a gas.
Tom, Cindy, Marc and Johann visit a candy store. They see the shop owner pour a bag of colorful, round gum balls into a large glass jar.
What is the state of the gumballs?
A. liquids
B. gases
C. solids
C. solids
Which items from a classroom DO NOT need light energy to do it's job?
A. digital clock
B. desk lamp
C. overhead projector
D. pencil sharpener
D. pencil sharpener
Lisa test the magnetic properties of matter and records the data in a table.
(see picture)
Which is true about the magnetic properties of the tested matter?
What is the least number of different types of substances needed to be combined to make a mixture?
A. one
B. two
C. three
D. four
B. two
Water changes states of matter when it is heated. As time passes, what will you observe happening to the water?
Evaporation - it will turn into a gas.
What state of matter are clouds and air bubbles?
Gas
Every evening, Mrs. Joseph takes out a metal bells and hits it with a stick. When her family hears the bell, they know it is time for dinner. Which forms of energy is she using?
A. Mechanical energy (to strike the bell) and Sound Energy (the vibration makes the ringing sound.
B. Thermal energy to strike the bell, sound energy makes the ringing sound.
C. Sound energy to strike the bell, mechanical energy from the vibration makes the ringing sound.
D. Thermal energy is used to strike the bell, light energy from the vibration makes the ringing sound.
A. Mechanical energy (to strike the bell) and Sound Energy (the vibration makes the ringing sound.
A cook is going to buy a new pot. He is looking for a pot with a handle that will not burn his hands if he picks up the pot while he is cooking. He looks at a chart that shows four different pots and the temperature of each pot's handle when water is boiled in each pot.
Which pot is the cook most likely to buy?
(See picture)
G. Mom's pot
You make lemonade by combining water, sugar, and lemon juice. What is lemonade an example of?
A solution.
At what temperature (in BOTH Celsius and Fahrenheit) does water freeze?
32 degrees Fahrenheit
What is mass?
A. anything that takes up space
B. how warm something is
C. the amount of space an object takes up
D. the amount of matter in an object.
D. the amount of matter in an object.