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- 1. Multiple Choice
Erin is making macaroni and cheese for dinner. She adds the cheesy powder and salt packets to the boiling water. What can Erin do to help the cheesy power and salt dissolve faster?
Erin can add more water to the pot to help the cheesy powder and salt dissolve faster.
Erin can stir the boiling to help the chessy powder and salt melt faster.
Erin can add more salt to the boiling water to help the cheesy powder dissolve faster.
Erin can stir the boiling to help the chessy powder and salt dissolve faster.
- 2. Multiple Choice
David is completing an experiment to test how many hours of sunlight causes colored bulletin paper to fade? How many hours of sunlight should his control group receive?
5 hours of sunlight
10 hours of sunlight
0 hours of sunlight
1 hours of sunlight
- 3. Multiple Choice
Select all the examples of a chemical change?
Melting Chocolate.
Baking a Cake
Burning a Bagel in the toaster
Breaking a pencil
Letting an orange rot on the counter
- 4. Multiple Choice
Tim completed an experiment to test the effects of music on people’s sleep patterns. For the experiment, 4 groups of people were created. One group was placed in a quiet room where they went to sleep and they were timed on how long they slept. The other groups were placed in a room where either jazz, classical, or pop music played softly as they began to sleep and played throughout the night. As each group awoke, their sleep times were monitored. What is the control group?
The group placed in the quiet room.
The group in the room where they played jazz music.
The group in the room where they played classical music.
The group in the room where they played pop music.
- 5. Multiple Choice
Martin dissolved 1 cup of sugar into 3 cups of water in a metal pan. How can Martin remove all water from pan leaving only the sugar behind.
Martin can use a strainer to separate the water from the sugar.
Martin can heat the sugar till it evaporates leaving only the water behind.
Martin can heat the water till it evaporates leaving the sugar behind.
Martin can use a strainer to separate the sugar from the water.
- 6. Multiple Choice
Destiny placed 4 drops of different colored food coloring in 4 different plastic cups. Each cup had 20 ML of colored liquid. Destiny placed the cups of blue, yellow, green, and red liquid on the second shelf of her freezer. Which of the following could be an observation that Destiny could have made as she placed the cups in the freezer?
The cups are placed on the left side of the first shelf.
The liquid in the cups will freeze in 1 hour.
Each cup has a different color liquid.
The cups are placed on the second shelf of the refrigerator.
- 7. Multiple Choice
Which is an example of a physical change?
Rust on a bicycle chain.
Baking a cake
Cracking an egg in a bowl.
Burning a sheet of paper
- 8. Multiple Choice
Which of the following will increase the rate at which a chemical reaction occurs.
increasing the temperature
decrease the temperature
leave the temperature the same
temperature does not have an effect on chemical reactions.
- 9. Multiple Choice
Dawsen wants to make chocolate milk using Hershey's syrup. How could Dawsen speed up the rate of the syrup dissolving in his milk?
Put the syrup in the fridge to cool before putting it in the milk
Put the syrup in the milk and let it sit
Increase the amount of syrup you put into the milk
Warm up the syrup before putting it into the milk
- 10. Multiple Choice
A group of students investigated physical and chemical changes using paper. The students recorded their observations in a table.
Which student correctly recorded all the changes that took place?
Student 1
Student 2
Student 3
Student 4
- 11. Multiple Choice
Select all the physical changes that occur because of a rise in temperature.
Melting
Evaporation
Freezing
Steam
- 12. Multiple Choice
Which of the following will not dissolve?
black pepper
sugar
salt
food coloring
- 13. Multiple Choice
Which scientific tool is BEST used to measure the volume of a substance?
triple balance beam
graduated cylinder
thermometer
microscope
- 14. Multiple Choice
Select all the following that is true about atoms
Matter is made of atoms
Scientists do not believe that atoms exist
You can see atoms using an electron microscope.
You can see atoms using any type of microscope.
Atoms have a nucleus
- 15. Multiple Choice
What combination would dissolve a solid solute the fastest?
high temperature, no stirring
no heat, no stirring
high temperature, stirring
no heat, stirring
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