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WorksheetsUnit 6 Science Test
Total questions: 20
Worksheet time: 5hrs 0mins
Helen takes some bread out of the oven. Why does she use oven mitts?
Her hands will look better.
Her hands are cold.
She wants to keep clean.
She wants to protect her hands from the heat.
A mover pushes a box up a ramp. Which produces the most heat?
box moving against the ramp
ramp sitting against the truck
wind pushing against the box
mover’s hands on the box
At a party, there are ice cream, balloons, and a cake with lit candles. Which most likely has the highest temperature?
balloon
bowl
candle
ice cream
Ezra sets a bowl of hot soup on a table. Which statement best describes what happens when he puts the spoon in the soup?
The air’s temperature will decrease.
The soup’s temperature will increase.
The bowl’s temperature will increase.
The spoon’s temperature will increase.
Gloves protect people’s hands from friction by
(a)
They prevent blisters.
They keep hands clean.
They keep germs off.
They prevent scratches.
Juan has a beaker filled with ice and water. How will heat move to melt the ice?
from the ice into the water
from the water into the ice
from the water into the air
from the beaker into the air
At a party, there are ice cream, balloons, and a cake with candles. Which direction has the greatest heat movement?
air to ice cream
cake to candles
balloon to air
ice cream to air
Julie has a glass filled with ice and water. How could she make the ice melt more quickly?
add more ice
put a book under the glass
put the glass under a lamp
put the glass in a closet
Khalil’s family is cooking lunch on an outdoor grill. Which things are giving off heat?
the coals and the air
the food and the flames
the grill and the food
the coals and the flames
Which action creates the most friction and heat?
gently brushing face paint onto your cheeks
rubbing your bare hands together numerous times
rubbing your soapy hands together underwater
smoothing hand lotion onto the palms of your hands
Mitch read that rubbing skin on skin creates more friction than rubbing skin on paper. How could he best test this?
He could rub his hands on a doorknob, then on paper.
He could rub his hands together, then on a piece of paper on a table.
He could put paper between his hands and rub them.
He could rub his hands together inside the building, then outside.
Liang turns on her desk lamp and gets a cup of water. She sits at her desk to do homework. Which direction does heat flow to make Liang’s book feel warm after a few minutes?
from the book to the cup
from the desk to the book
from the lamp to the book
from the book to the lamp
Judy puts a slice of hot pizza on her plate. When she picks up the plate, it feels warm. In which direction does heat flow to make the plate feel warm?
from the pizza to the plate
from her hand to the plate
from the plate to the pizza
from her hand to the pizza
Jason is watching a film about rescuers holding on to a rope and climbing down it. One person slides down the last 2 m of the rope. Where does the most heat occur through rubbing?
feet and air
feet and ground
air and rope
hands and rope
Jamal is toasting marshmallows on a stick over a campfire. The direction the heat flows to toast the marshmallow is from the
(a) to the (b)
fire
marshmallows
air
logs
sticks
Milo's energy bar has a hard yogurt coating. He doesn't think that the coating will melt because the day is cold. After eating half the bar, he sees that the coating is starting to melt. In what direction does heat move to melt the bar?
from the bar to the air
from the air to her hand
from her hand to the bar
from the bar to her hand
Chet is camping. Which of his camping items can produce heat?
backpack
flashlight
sunglasses
toothbrush
On a cold day, Avery makes hot cocoa. She pours the cocoa into a cup and adds small marshmallows. In which direction does heat mostly flow?
from the air to the cup
from the cocoa to the air
from the air to the marshmallows
from the marshmallows to the cocoa
Kendall is grocery shopping with her dad. She gets a bag of frozen broccoli and places it in the grocery cart. Her hands are now very cold, and her dad tells her to rub her hands together. What is the reasoning that explains his claim?
A. Her hands will create electrical energy
B. Her hands will trap heat from the air in the store
C. Her hands will create friction, which will create heat
D. Her hands will reduce the friction she had created with the bag.
Playground slides and water slides can be different sizes and shapes. Look at the picture.
The following statements describe how friction affects the speed of someone coming down the slides.
Which statement is correct?
The water on slide D decreases friction, making this slide the fastest
The bumps on slide A do not slow the slider down, so this slide is the slowest
Slides C and D have the same speed because wet people create the same friction
Slide B is the slowest slide because it is dry and has more friction than slides C and D.
