An electrical component which includes a path that electrical energy flows on is called

Which statement correctly describes the difference between the revolutions of planets and moons in the solar system?

John wants to compare how fast water (H₂O) will drain through three different types of soil. He gets three soil samples of equal size and puts each into a Styrofoam cup. Six equal-sized holes are punched into the bottom of each cup. One at a time, John adds 50 milliliters of water to each soil. He measures and records the amount of time required for the water to completely drain through each type of soil.

Carefully read the description of John’s experiment above. Which of the following is a variable in this experiment?

What is the Milky Way?

The Moon does not make its own light. It is lit by the Sun. Which statement explains why we are able to see the Moon?

A student tested different items to determine which items conduct electricity. 

Which list of items includes only items that did NOT conduct electricity?

When a person looks into a mirror, how do light rays behave to allow the person to see the image?

Which material BEST conducts heat and electricity?

A student wants to test how music affects plant growth. She places one plant in a quiet sunny room and one plant in a sunny room with classical music playing. She waters both plants the same amount. What is the variable being tested in her investigation?

Which statement BEST describes the differences between the inner planets and the outer planets?

The major function of the kidneys is to

Human ovaries play an important role in reproduction. Which part of a plant contains structures similar to human ovaries?

Henry has two large toy cars. His red car has a higher mass than his blue car. How can he push both of them from rest, up to the same speed?

Christy’s mother observed that there are more flies this summer than there usually are. Which sequence of steps can Christy use to investigate whether this is true?

The Florida scrub jay is a bird found only in the scrub habitat of Central Florida. Efforts are being made in Florida to preserve the scrub habitat by limiting development by humans and maintaining natural conditions. Which may occur over time if the Florida scrub habitat is NOT preserved?

Mosquitoes have short life cycles based on the temperature and the amount of daylight. With increased global temperatures, a species of mosquito is beginning to reproduce earlier in the year as well as entering dormancy later in the year. Which phrase describes this change in the life cycle of the mosquito?

Zena performed an experiment to test the impact of lower temperatures on germination. Group A was left at room temperature, group B was changed to 10 degrees below room temperature, group C was changed to 20 degrees below room temperature, and group D was changed to 30 degrees below room temperature. Which group was the control group?

High average daily temperature and heavy annual precipitation are found in a

In an experiment about learning, a scientist sent five rats through a maze and recorded the time for each to finish the maze. Then the scientist sent each rat through the same maze a second time, again recording the time to finish. Which statement is based on direct evidence the scientist likely made during this experiment?

How do the waxy stem covering and needle-shaped leaves improve the ability of a cactus to survive in the desert?

A layer of very cold air is close to the ground. Rain will have to pass through this layer as it falls. Which type of precipitation is most likely to reach the ground?

The water on Earth is constantly moving. It evaporates from lakes and oceans. It condenses into clouds. It falls back to Earth as precipitation. Water cannot be moved without energy. What energy source drives Earth's water cycle?

In a play about types of precipitation, Ben’s little sister pretended to be a raindrop that is carried up and down in a storm cloud. What was her role in the play?

One summer afternoon the humidity in Ocala, Florida was 80%. What is humidity?

What effect does high pressure usually have on weather?

Swampy areas can be found in many Florida locations.   What weather conditions are most frequently found in this environment?

Which statement best explains why the temperature at the top of a mountain would be different than the temperature at the bottom?

Energy from the Sun causes evaporation. Why does more evaporation happen from the oceans than from freshwater sources?

Precipitation is water that falls to Earth. Hail, rain, sleet, and snow are four types of precipitation. Which type of precipitation is most likely to occur when the cloud and air temperatures are above freezing?

An office building was built on land near Duarte’s home. The land was grassland before construction. What change will Duarte most likely see in the plants and animals that lived on the land?

After a forest fire near his home, Brian noticed that a number of Jack pine trees began to grow in the burned area. He learned that the fire had opened the Jack pine cones and released the seeds, allowing the Jack pine seeds to begin germinating immediately. What advantage do the Jack pine seedlings have after a fire?

Hannah grows tomato plants in her garden. She wants to find out if the temperature of the water she provides to her tomato plants affects how tall the plants grow. What type of scientific investigation will best help Hannah answer her question?

Mr. Chaus is going to show paper going through a chemical change. What can he do to the paper to cause the chemical change?

Sharla is using powdered mix to make hot chocolate. She will boil some water and then stir in the mix. What is the best way to make the powdered mix dissolve more quickly?

Scientific advancement depends on discovery and the development of new theories. Which of these statements best describes how replication can affect scientific progress?

Predictions are important components of scientific investigations. Which of the following is true about a scientific prediction?

Saqib placed an ice cube on a plate. The ice cube changed from a solid to a liquid. What happened to the amount of matter in the ice cube?

Which of these is the fastest way to sort steel pellets from a pile of stone gravel?

Ravi and Marge mixed cereal and pretzels for a party. When the party was over, they wanted to separate the mixture back into the two original parts.                       

Which of these is the best property to use to separate the mixture?

Cara read an article on why repetition and replication are so important, but she did not understand the difference between them. Which of the following best explains the two terms?