Jack is measuring the temperature of soil around his brother's work building. He notices that the soil near the cafe is in the shade in the morning. In the afternoon, it is in direct sunlight. How could the time of day that Jack measures the temperature affect his results?
The afternoon sunlight could increase the soil's temperature.
Jane is holding some books as shown in the picture. Why doesn't gravity pull the books to the floor?
Jane is holding the books up with a force that is equal to that of gravity pulling them down.
Hannah notices that stars look like points of light in the night sky. The sun looks like a huge fireball in the sky. Which statement best describes why other stars appear different from the sun?
All the stars are farther away from Earth than the Sun.
What word means "a push or a pull"?
What word means "a force that pulls objects toward each other"?
During the daytime, a desert can be very hot. At night, the temperature is much cooler. What causes the different in day and night temperatures in a desert?
During the day, the Sun heats the desert, and that heat is lost during the night after the sun has set.
The space shuttle has a fuel tank and two rocket boosters. The rocket boosters give off a blast of hot gases. This blast helps launch the shuttle. The figure below shows the rocket boosters during a launch. Why are the rocket boosters needed to send the shuttle into space?
The boosters produce a force to overcome Earth's gravity.
The Sun appears to be the brightest star in the sky. What causes the Sun to appear so bright to people on Earth?
The Sun is the closest star.
What tool is used to measure force?
A spring scale
What word means "to take in"?
How might the water change in a swimming pool when it is heater by the Sun's radiant energy?
The temperature increases (rises).
In baseball, a fly ball happens when a player hits the ball high into the air. The player on the other team must wait for it to come down to catch it. Imagine that there was suddenly no gravity on Earth. How would a fly ball be different?
The fly ball would never come down.
A pot of water was left in the sunlight. The temperatures of the water throughout the day are recorded in the chart below.
Temperature of Water Throughout the Day
Based on the chart, what temperature would you expect the water to be at 9:00 P.M.?
A) 26*C (78*F)
B) 22*C (72*F)
Tony did an experiment. He made a conclusion about the experiment. Which of these things can Tony do to show that his conclusion is correct?
Tony can use observations from the experiment.
What word means "the energy of moving particles"?
Two students want to sit outside in a place that is the coolest from 11:00 a.m. to 1:00 p.m. One thinks a shady spot will be cooler, but the other student thinks a sunny spot would be just as cool. How could they use two thermometers to find out?
Compare the temperature of the shady spot and the sunny spot from 11:00 a.m. to 1:00 p.m.
A skydiver jumps out of a plane. He falls downward at a very fast speed. When he opens his parachute, he slows down. He falls at a safer pace until he lands. What force pulled the skydiver to the ground?
You can see an object in space when light from the object reaches Earth. Some objects produce their own light. Others only reflect light. Which object produces energy that it gives off as light?
Three students observed the outside air temperature throughout the day. Their findings are below.
The students recorded temperatures from their own thermometers in the same area each time. What could be a reason for the slight differences in the temperatures they recorded?
Some of the readings were in between the marks so the students decided which mark was closest.
What word means "the temperature scale used in the United States"?
Abby fills six jars each with 400mL of water. She places three of them outside in sunny spots. She places the other three outside in shady spots. She waits 4 hours. Then she measures how much water is left in each jar. She graphed the data.
What conclusion can be supported by the evidence?
Water evaporates more quickly in the sun than in the shade.
A car goes through a tunnel and up a hill. It then goes down the hill and over railroad tracks. As which point is the car overcoming gravity?
As it goes up the hill.
Sally is studying objects in the sky that give off light energy. What in our solar system gives off light energy?
The Sun, because it is a star.
What word means "a way to find out the answer to a question"?
What word means "to give off"?
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