5th Grade Physical Science (1st try)

Elizabeth wanted to know how fast the sun heats water. She put bowls of water in the sunlight. Then she recorded the temperature of the water in the bowls every 15 minutes for 3 hours. When she recorded the temperatures, what part of a scientific investigation did Elizabeth do?

• stated an opinion

• collected evidence

• made a prediction

• drew a conclusion

Each of the states of matter has specific characteristics. Which statement correctly describes one of these characteristics?

• Solids flow from one place to another.

• Gases can expand and be compressed.

• Liquids have definite volume and shape.

• The particles in solids have weak forces of attraction.

Kate had two cups of water. She added a tablespoon of sugar to one cup and mixed it. She put a tablespoon of sand in the second cup and mixed it. What happened to the sugar and sand when Kate mixed them with water?

• The sand dissolved forming a solution; the sugar did not dissolve.

• The sand dissolved forming a solution; the sugar evaporated

• The sugar dissolved forming a solution; the sand did not dissolve.

• The sugar melted; the sand did not melt.

Juan was hungry. He put cheese, ham, tomato, and pickle on a slice of bread. He folded the bread in half and ate it. Which of the following describes what Juan made when he combined all these ingredients?

• a solution

• a change of state

• a chemical change

• a mixture

Haley’s mom filled an ice cube tray with water and placed it in the freezer to make ice. The tray contained 500 grams of water when she filled it. How will freezing the water affect its mass?

• Freezing the water will decrease its mass.

• Freezing the water will increase its mass.

• Freezing the water will not change its mass.

• Freezing the water will first increase and then decrease its mass.

Sophie is eating her lunch on the playground. She leaves her chocolate bar on the picnic table in the sunlight. After one hour, she returns to find the chocolate bar in a puddle. What is the best explanation for what happened to the chocolate bar?

• The sun heated up the solid chocolate bar turning it to a liquid.

• The chocolate bar released heat into the air and turned into a liquid.

• The sun changed the chocolate bar chemically until it formed a liquid.

• The temperature caused molecules in the chocolate bar to slow down, turning in into a liquid.

Students were observing a classroom device being used and recorded the following energy transformations. Select which devise the students were most likely observing?

1st Electrical-2nd Mechanical- 3rd Sound

• A triple beam balance measuring an object’s mass.

• A pencil sharpener plugged into a wall outlet.

• A computer displaying an image on the screen.

• A battery-operated flashlight shining brightly.

Josh placed sand in his toy truck at the top of the hill. The toy truck started going down the hill. Eventually the toy truck came to a stop. What is the most reasonable cause for the truck eventually coming to a stop?

• Gravity acting on the toy truck.

• Friction acting on the toy truck.

• The mass of the toy truck.

• The mass of the sand in the toy truck.

Frank uses a bowling ball to demonstrate how energy can cause changes. Which of the following actions would NOT demonstrate a change caused by Frank applying energy to the ball?

• He holds the bowling ball in both hands.

• He spins the bowling ball with one hand.

• He rolls the bowling ball across the floor.

• He lifts the bowling ball to place it on a shelf.

Ariana uses balloons to investigate static electricity. Which of the following best explains what will happen when she brings two positively charged balloons close to each other?

• The balloons will move apart.

• One balloon will lose its charge.

• The balloons will come together.

• One balloon will gain a negative charge