Quarter 1 Science Review

A ​ (a)   is something you use your 5 senses to identify. An ​ (b)   is something you must use evidence to make a prediction.

• observation
• inference

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The students disagreed about the types of energy used to sharpen the pencils. Which statement best describes the energy of the pencil sharpener?

• The pencil sharpener uses light energy.

• The pencil sharpener uses mechanical energy.
• The pencil sharpener uses heat energy.

• The pencil sharpener uses sound energy.

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Peyton said that activity 1 supported the claim that some activities did not use electrical energy. Which type of energy was used in activity 1?

• light

• sound

• heat

• energy of motion

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Students wanted to conduct a demonstration to show that friction can produce heat energy. They rubbed two pieces of cloth together for different amounts of time and recorded the temperatures before and after being rubbed. What should the data show to support the claim that friction can produce heat energy?

• The temperature of the cloth will decrease as they are rubbed together.

• The temperature of the cloth will increase as they are rubbed together.

• The temperature of the air will increase as the cloths are rubbed together.

• The temperature of the air will decrease as the cloths are rubbed together.

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Miguel made several statements about breakfast as the family was cooking. Which statement is an inference?

• There are 8 eggs that were broken to make the scrambled eggs.

• Some pieces of toast are darker than others because the toaster is broken.

• The pancakes need to cook for 3 minutes on each side.

• Toto cleaned up the spilled eggs in 30 seconds!

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Nico was demonstrating how heat energy can cause a change. Nico placed one container of water in the freezer for 24 hours. What change did Nico observe?

• The heat energy changed the temperature of the water from hot to cold.

• The heat energy changed the motion of the water from still to moving.

• The heat energy changed the sound of the water from quiet to loud.

• The heat energy changed the size of the water from larger to smaller.

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Hezekiah was working on staying still during class. The teacher looked at Hezekiah and said the there had been motion. What could the teacher have seen to know Hezekiah had been in motion?

• The location of Hezekiah’s body was the same.

• The direction of Hezekiah’s body was the same.

• The direction of Hezekiah’s body had changed.

• Another student around Hezekiah had changed position.

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Team 2 was excited about their results. They said the furthest the marshmallow had ever traveled before was 400 inches. Ms. Long stated that the results during practice was actually further than their competition results. Why are the results from practice and competition so different?

• The students did not measure correctly at competition.

• The teacher measured in centimeter for practice but inches for competition.

• The teacher did not measure correctly at competition.

• The students measured in inches for practice but centimeters for competition.

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Sloane and Tyson were at the skatepark for the afternoon. Sloane wanted to race Tyson, but they couldn’t fit on the slope to race at the same time. What could Sloane and Tyson do to determine who had the greatest speed?

• They could measure the distance and the height of the ramp.

• They could measure the height of the ramp and the mass of their skateboards.

• They could measure the distance they rode and the time it took to reach the same finish line.

• They could measure the time it took both to stop rolling when they reached the bottom of the slope.

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The local after-school club was hosting a toy speedboat competition down at the lake. They were planning the event and discussing how they would determine which entry has the greatest amount of speed. Which tools would the club need to have in order to determine every boat’s speed?

• measuring tapes and stopwatches

• trundle wheels and spring scales

• stopwatches and timers

• measuring tapes and trundle wheels

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