WorksheetsSC 5 P 9 1
Total questions: 15
Worksheet time: 15mins
Micah placed a beaker of water on a hot plate. When bubbles started coming to the top of the water, he made the first sketch. After 5 min, Micah made the second sketch.
What happened during the 5 min that Micah was observing the beaker of water?
Water was changed into energy during a chemical change.
Water was changed into a different state during a physical change.
Water was changed into a different material during a physical change.
Water was changed into a different material during a chemical change.
Study the image. Which two changes shown are physical changes?
chopping wood and boiling water
cooking food and burning wood
burning wood and boiling water
cooking food and chopping wood
Changes to matter can be classified as physical changes or as chemical changes. Which of the following represents a physical change?
A) Melting ice
B) Burning wood
C) Rusting iron
D) Dissolving sugar in water
Jacob put yeast into two bowls of water and added a little sugar to each bowl. He put one bowl in a warm place and the other bowl into the refrigerator. After a while, Jacob observed tan-colored foam spilling over the sides of the warm bowl. What kind of change is this?
physical change
chemical change
scientific change
geological change
Taylor put the same amounts of water, sugar, and yeast into three balloons. Then she put each one in a place with a different temperature and observed the changes. If someone wanted to replicate Taylor’s experiment, what other information would they need?
the mass of each balloon and what was in it
the temperature where each balloon was placed
the size of the table where each balloon was placed
the total mass of all balloons and what was in them
When an egg is cracked and put in a hot pan, it flows easily. After it cooks for a minute, the egg becomes solid. Why does the egg change?
Breaking the shell is a physical change in the egg that makes it solid.
Breaking the shell is a chemical change that makes the egg become solid.
Heating the egg on the stove causes the egg to evaporate and become solid.
Adding heat causes a chemical change in the molecules of the egg that makes it solid.
Jo observed some changes and made a table of chemical changes and physical changes.
Which change did Jo put in the wrong column?
sharpening a pencil
baking a loaf of bread
pouring milk into a glass
crumpling aluminum foil into a ball
When a hiking club went on an outing, they took marshmallows to roast over a campfire.
Which of these changes is a physical change?
Wood burns and forms ash.
Smoke forms above the fire.
Air expands and moves away from the fire.
Marshmallows become blackened and crispy.
Bubbles forming after two or more substances are mixed together.
physical change
chemical change
Many physical and chemical changes are affected by temperature.
True
False
A change in which the form or shape of a substance changes but the substance still has the same composition (chemical make-up).
physical change
chemical change
A change caused by a reaction that forms new and different substances.
physical change
chemical change
SC 5 P 9 1
Melting ice
Burning wood
Rusting iron
Dissolving sugar in water
SC 5 P 9 1
physical change
chemical change
scientific change
geological change
SC 5 P 9 1
the mass of each balloon and what was in it
the temperature where each balloon was placed
the size of the table where each balloon was placed
the total mass of all balloons and what was in them
