Mixed Unit
Mixed Unit
Mixed Unit
Vocab/Nature
Vocabulary

### 100

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.

### 100

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.

### 100

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.

### 100

What word means "a push or a pull"?

Force

### 100

What word means "a force that pulls objects toward each other"?

Gravity

### 200

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.

### 200

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.

### 200

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.

### 200

What tool is used to measure force?

A spring scale

### 200

What word means "to take in"?

absorb

### 300

How might the water change in a swimming pool when it is heater by the Sun's radiant energy?

The temperature increases (rises).

### 300

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.

### 300

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

 Time Temperature 10:00 A.M. 18*C     (64*F) 12:30 P.M. 26*C      (79*F) 3:00 P.M. 28*C      (83*F) 5:30 P.M. 27*C      (80*F) 8:00 P.M. 21*C      (70*F)

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)

C)18*C      (65*F)

D)10*C      (50*F)

C)18*C      (65*F)

### 300

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.

### 300

What word means "the energy of moving particles"?

Heat energy

### 400

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.

### 400

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?

Gravity

### 400

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?

Sun

### 400

Three students observed the outside air temperature throughout the day. Their findings are below.

 8:15 a.m. 10:15 a.m. 12:15 p.m. 2:15 p.m. Lucia 24℃ (75℉) 26℃ (78℉) 29℃ (84℉) 32℃ (89℉) Ateem 24℃ (75℉) 26℃ (78℉) 29.5℃ (85℉) 31℃ (88℉) Emily 24℃ (75℉) 25℃ (78℉) 29℃ (84℉) 31℃ (88℉)

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.

### 400

What word means "the temperature scale used in the United States"?

Fahrenheit

### 500

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.

### 500

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.

### 500

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.

### 500

What word means "a way to find out the answer to a question"?

Investigate

### 500

What word means "to give off"?

emit