When using a solar-powered calculator, what source of energy is being used to power the calculator?

The arrows in the diagrams below represent light. Which diagram best shows how a glass mirror would reflect light?

Which of the following statements best describes the effect of solar energy absorbed by water in the ocean?

If a person is describing the daily changes in temperature and perception, they are referring to an area's--

Over a period of 40 years, the amount of rain that fell in the central Texas area was measured and recorded. Monitoring and tracking rainfall over a long period gives the most accurate information about--

What is one difference between weather and climate?

Which event best describes an example of evaporation?

In the water cycle, the Sun's energy is directly responsible for causing the process at location---

What process is represented by letter B?

The picture shows a Pine squirrel sitting on a tree branch in a Temperate Forest Biome.

Which factor most likely does NOT affect the Pine Squirrel's survival in the temperate forest biome?

Show the process of Weathering

Which one is less dense than water

Do Series Circuits need an electric current?

Which Fact is true

Which Object is Magenetic

In the formation of fossil fuels you need all of the following EXCEPT...

What is the definition of Camouflage?

Which one of these are soluble in water?

All of these are magnetic EXCEPT...

Show the process of erosion.

Which of these shows all fossil fuels

A worker built a sidewalk and pressed some large salt particles into the concrete while it was still wet. When the concrete was dry, the worker washed the sidewalk with water. The picture below shows the sidewalk after it was washed.

What most likely happened to the salt?

When a powdered drink mix was added to water, the liquid turned orange. A student decided the taste was too strong, so he poured out half of the liquid and added more water. Which of the following most likely occurred when more water was added?

A cook uses the ingredients listed below to prepare a meal.

Which table correctly shows the physical properties of these ingredients when placed in hot water?

A student made a mixture using equal amounts of salt and pepper. The salt grains were the same size as the pepper grains. What should the student do to most easily separate the pepper from the salt?

A teacher gives a student four clear sealed containers. Each container holds a different substance. The student records some observations about the substance in each container. Based on these observations, which container most likely holds only gas?

Some students investigate the properties of four objects using a hand lens, a magnet, and a beaker containing water. Their observations are recorded in the table. Which statement identifies a property that could be used to classify these objects into two different groups?

A student adds 10 grams of four different powdered solids into four different beakers. The student then adds 100 mL of water to each beaker, stirs the mixtures, and allows them to sit for half an hour before recording observations. Which question is the student most likely trying to answer with this investigation?

A student classifies the objects shown based on their physical properties. Which property cannot be used to classify these objects into more than one group?

A science class tested three properties of different materials. The results are shown in the table below. Based on the table, which material would be best to use to insulate electrical wires?

Some people add sugar to their hot tea. Which property of the sugar remains the same when the sugar is in the tea solution?

A student combined powdered paint with water to make a small amount of a blue liquid paint mixture. The student left the paint mixture in an open container. Several days later the student found the container and observed that changes had occurred. What most likely happened to the mixture?

The table lists some properties of four different samples of matter. Which two samples could be glass and saltwater?

Some ways to separate mixtures are listed below. A student is given a beaker containing gravel and water. Which of these ways could the student NOT use to separate the gravel from the water?

For an investigation a student put 100 mL of water at room temperature into each of three beakers. Then the student added a coin to Beaker R,3 g of a powdered drink mix to Beaker S, and 10 mL of lamp oil to Beaker T. The student stirred the contents of the beakers and then left them sitting on a lab table for 5 minutes. Which diagram shows what the student most likely observed in each of the beakers after 5 minutes?

Students are investigating properties of objects. They observe four objects and record observations for each object in the table. Based on the students’ observations, which of these tables properly identifies the objects?

A student measured out 10 mL of four clear liquids and added one drop of a different-colored dye to each liquid. One of the liquids was water. The student then carefully poured each liquid into a graduated cylinder and let the mixture settle for 30 minutes. The student observed that the liquids had separated into layers, as shown in the diagram. Which of these procedures would help the student identify the layer of water?

A student stirs 15 grams of each substance listed below into 200 milliliters of water to form four different mixtures. The student then tries to separate the water from each mixture by pouring the mixture through a kitchen tea strainer. Which mixture can the student separate most easily with the strainer?

What drives the water cycle?

Adding of thermal energy to the liquid state of matter changes it to ___.

Removing energy from a liquid, changes it to a ___ and is called ___.

Floats in water: metal paper clip, wooden twig, foam cup, plastic bead

Light travels ___

Transfers thermal energy easily, quickly

how crowded matter is

sink = more crowded than substance it's being compared to

float = less crowded than substance it's being compared to

Prevents thermal energy loss

Physical state that has has a definite volume and a definite shape

Physical state that has a definite volume and takes the shape of its container

How much space matter takes up or occupies

The amount of matter in an object (the amount of stuff)

The removal of thermal energy from a gas changes it to a ___ and is known as ___.

Two or more substances that are physically combined

Energy that we get from the Sun that we can see.

Closed path in which current flows

Open path and current is interrupted; it cannot flow

Light bounces off a shiny surface

Objects appear magnified because light bends when it passes through different media

All are examples of reflection except ___.

All are examples of refraction except

how much of something there is - the amount

a sign which shows that something exists or is true

a variable that does not depend on other changes in other values

a value that depends on what happens to other variables in the experiment

a living thing's surroundings

the wearing away of the land by forces such as water, wind, and ice.

to transfer heat energy

to use something wisely in order to avoid using it up

the property of a substance that tells how well it dissolves in another material

the substance in which the other substance is being dissolved

the substance that is dissolved in a solution

the amount of matter in a certain amount of space

the process of moving or changing position - one force is stronger than the other

the same strength but act in opposite direction - does not cause change in motion

a push or pull

the change in position

the spinning of an object around its axis

the movement of one object around another objet

to use your senses to gather information

A material through which heat or electricity does NOT easily flow

How dense something is compared with a reference material (like water)

The classification of matter as a solid, liquid, or gas

To group together based on similar traits; sort; separate

A state of matter that does not have a definite shape or take up a definite amount of space. A ___ can expand to fill any available space in a container.

Something you do to explore a question.

A state of matter that does not have a definite shape but takes up a definite amount of space. A ____ fills the bottom of its container when at rest, and flows freely when poured.

A careful description that is based on what you have seen. Can include measurements.

To pay close attention to something and notice many details about it.

A solid material in the form of tiny, loose particles.

A sequence of steps that describes how to perform a specific task.

A characteristic that helps to describe or identify an object, a material, or a state of matter. For example, a ______ of a liquid is that it can pour; a _______ of iron is that a magnet attracts it.

A state of matter that has a definite shape and takes up a definite amount of space. It keeps it shape when at rest, whether or not it is in a container.

A form, stage, or condition of something that can change. Solid, liquid, and gas are _____ of matter.

What you have discovered based on observations or other data. You should be able to support your ___________ with evidence.

A guess about what you think might happen during an experiment or investigation, based on what you already know

The measure of how heavy something is. It is often used as a measure of mass.

Not exact. A guess based on actual measurements or counting.

The amount of space something occupies. A property of all matter.

A mixture of gases that surround the earth.

To become larger, or take up a larger space. Gases ______ if put in a larger container.

The tendency of a material to dissolve in another material.

when matter has a change in its physical properties but not its chemical properties; only state, shape, size, color change; there is no new substance created

A system used by scientists to help them group and study organisms by similarities, or things that the organisms have in common

Forces that build up surface features

Forces that tear or wear down surface features

 destructive process where Earth materials such as rocks and soil are broken down into smaller parts

the movement of materials from one place to another by natural method

a constructive process whereby soil and rock that are eroded from one location are deposited as sediment in another location

a property of certain types of materials that allows them to attract or repel other objects that have this property.