When you mix two substances and a new substance is formed, what type of change has occurred?

Which state of matter has a definite shape and volume?

If you heat an ice cube and it melts, what kind of change is this?

What happens to the total weight of matter when you mix two substances together?

Which of the following is an example of a mixture?

A student observes that sugar dissolves in water. What property of sugar is being observed?

You have a sealed container with ice. After the ice melts, what happens to the total mass of the container and its contents?

Which of the following best describes a molecule?

A student mixes vinegar and baking soda and observes bubbles forming. What does this observation suggest?

You are given three unknown solids. You test their hardness, magnetism, and ability to dissolve in water. What are you trying to do?

A student measures the mass of a beaker with water before and after adding a sugar cube. The total mass increases by the mass of the sugar cube. What does this show about matter?

A teacher asks students to develop a model to show that matter is made of particles too small to be seen. Which of the following would be the best model?

A student mixes two clear liquids and observes a white solid forming at the bottom of the container. What does this evidence suggest?

You are given four unknown powders. You test each for solubility in water, magnetism, and reaction with vinegar. How can you use your results to identify each powder?

A student measures the mass of a closed container before and after a chemical reaction occurs inside. The mass does not change. What does this demonstrate about matter?

A group of students is asked to create a model to explain why we cannot see the particles that make up air. Which explanation best supports their model?

Which stage comes after the egg in the life cycle of a butterfly?

Which best describes an inherited trait?

Which characteristic would most likely be inherited by a baby?

Color or pattern that helps an animal blend in with its habitat is called:

This enables an organism to respond to its environment, and survive and thrive in its environment:

The colors and patterns on a turtle's shell help it blend in with the forest floor. This is:

Something an animal has or does that helps it survive is called a(n) _____

A green snake blends in so predators can NOT find it. This is an example of?

Having webbed feet is an adaptation. How do webbed feet help animals survive?

The stripes on a zebra make it stand out on the African savannah, but when in large groups the stripes of many zebras together make each individual blend into the crowd. These stripes are an example of:

This is an adaptation where an animal is able to blend into its surroundings.

A student has several rose plants. The flowers on one plant are yellow. The flowers on the other plants are red. Which is the BEST question the student could ask to determine whether yellow flowers are an inherited physical trait or an acquired physical trait?

Fox squirrels live in the trees of city parks in Texas. Each spring they build nests of twigs and leaves in the tops of trees. They are also often found near park benches, waiting to be fed by visitors. For fox squirrels, which of these is a learned behavior?

Do you think that an adult frog looks similar to a baby frog?

The process in which some organisms change form during different stages of life is called:

What is the term for the highest point of a wave?

Which of the following is a renewable energy resource?

What is the main purpose of a generator in a wind turbine?

Which of the following is used to send information using patterns of light or sound?

What is the term for the distance from one wave crest to the next?

Which of the following is a nonrenewable resource?

What type of energy does a hairdryer convert electrical energy into?

Which device does NOT transfer information using patterns?

What is the number of vibrations per second in a wave called?

What is the name for a deep impression left on a planet or moon's surface when objects strike it?

Which of the following best describes communication?

Which of these is an example of a pattern used to transfer information?

A student observes that when a ball hits another ball, both balls move. Which type of energy transfer is happening?

A solar panel on a house collects sunlight and produces electricity. Which two forms of energy are involved in this process?

Which of the following is an effect of using fossil fuels for energy?

A student claps their hands and hears an echo. What property of waves does this demonstrate?

A group of students is asked to design a device that uses wind to power a small light bulb. What energy conversion should their device perform?

A student notices that when two marbles collide, they both move in different directions. What can the student predict about the energy during the collision?

A class is asked to compare two ways to send information: using a flashlight to send Morse code and using a drum to send beats. What pattern is used in both methods to transfer information?

A student wants to design a test to see which material is best for making a device that converts solar energy to heat. What should the student do to make the test fair and reliable?

What is the name for the process that breaks down rocks into smaller pieces on Earth's surface?

Which type of rock is formed when small pieces of other rocks are pressed and cemented together?

What form of energy is being used when a person hits a tennis ball with a tennis racket?

Which form of energy is produced when a guitar string vibrates?

Where can the oldest layer of rock usually be found in a rock formation?

What is the kinetic energy?

Which of these is NOT a way to transfer energy from place to place?

Rain washing away soil from a hillside is an example of:

Your teacher filled a box with sand. She put a fan at one end and turned the fan on. The sand was blown to the opposite side of the box and collected at that side. What processes was the teacher demonstrating?

The amount of kinetic energy an object has depends on its:

Rocks and soil move very fast downhill. What is this event called?

When objects strike the surface of a planet or moon, they leave a deep impression on the surface called a:

What two types of energy are released into the air during the collision of two objects?

These are formed when layers of dead plants or animals covered by sediment and water are changed through heat and pressure over thousands of years:

Make an observation: If you see a pattern of seashell fossils in a rock layer on a mountain, what can you infer about the landscape in the past?

A student rolls two balls of the same size but different masses down a ramp. The heavier ball moves faster at the bottom. Use evidence to explain how the speed of the ball relates to its energy.

What is the main source of energy for all life on Earth?

What do plants need most to grow?

What is the force that pulls objects toward the ground?

Which of the following is a decomposer?

Which is the brightest star in our sky?

Which of these best describes a producer in an ecosystem?

Why does the Sun appear much brighter than other stars?

Which of these is an example of matter moving from a plant to an animal?

What do animals get from the food they eat?

Which direction does gravity pull objects on Earth?

If a plant is growing, where do most of its materials come from?

How does energy from the Sun reach animals?

Which statement best explains why the Sun looks brighter than other stars?

What role do decomposers play in the movement of matter in an ecosystem?

Which of the following supports the idea that gravity always pulls objects toward the center of the Earth?

If a plant is placed in a closed container with only water and air, what will likely happen to its growth?

A student claims that all the energy animals use for movement originally comes from the Sun. Use evidence to support or refute this claim.

Develop a simple model to show how matter moves among plants, animals, decomposers, and the environment.

A student argues that the Sun appears brighter than other stars because it is closer to Earth. What evidence supports this argument?

Support an argument that gravity on Earth always pulls objects down, even if they are dropped from different heights or locations.

What is the function of a water monitor lizard's tail structure?

Which part of the plant supports the leaves and carries water, minerals, and food throughout the plant?

What is being measured or the result/effect of this experiment?

In this picture, the iron filings show the shape of the magnetic —

On which surface will a toy car travel the furthest?

What cell part provides shape and structure for plant cells?

Light bounces when it is

This is an example of light being —

To demonstrate static electricity, a teacher takes an inflated balloon and rubs it against his hair. The rubber balloon picks up electrons from his hair, which makes his hair have

Why do we see objects as white?

What is the most likely reason that the balloons are sticking to the cat?

Each bone has a particular job. What is the job of the skull?

Avery likes to walk 30 feet in 10 seconds. What is her speed?

This is an example of light being —

Students conducted an investigation in which they let the same car roll down the same ramp in three different locations in their school with three different floor types, as shown in the picture. Which of the following questions was this investigation most likely designed to answer?

Jonny and Patty are pushing against a basketball. Both of them push against the ball on opposite sides with a force of 20 N to keep the ball still. What is the net force?

This motion graph represents:

This is a picture of a simple electromagnet. How can the electromagnet be made stronger?

Students described the amount of force needed to change the motion for each ball from idle to rolling. Which statement is true?

When a heavy football player and a light one run into each other, who exerts more force?

Which of the following is an example of a fossil?

What is the main reason animals like wolves form packs?

Which of the following is a climate found near the equator?

What is the main factor that separates the biomes?

Which of the following is a basic need for survival in a habitat?

What information can a fossilized plant give scientists?

Which statement best describes temperature patterns in areas along the equator?

What member of an ecosystem would a group of cats represent?

Which of the following changes to the environment would most likely be harmful to the survival of the Pacman frog?

What abiotic factor does the tundra and desert have in common?

Which observation in a forest involves an interaction between two groups of living organisms?

If a scientist found a fish fossil in the desert, what can they infer?

A plant is adapted to a forest with little sunlight. Identify the BEST adaptation this plant might have to ensure its survival.

Represent the typical weather conditions expected during winter in a northern region using a table or graph. Which of the following would most likely be shown?

Which statement is correct about the survival of organisms in a particular habitat?

Northern biome with many coniferous trees; very cold temperatures in the winter months.

Construct an argument for why penguins form large groups in Antarctica.

Analyze and interpret the following data: Fossils of palm trees are found in Alaska. What does this evidence suggest about Alaska's environment long ago?

Construct an argument with evidence: In a desert habitat, why do cacti survive well while ferns do not?

Obtain and combine information to describe how the climate in the Sahara Desert is different from the climate in the Amazon Rainforest.