What law states that in any physical change or chemical change, the total mass of matter does not change?

Katie's class is observing how different substances are affected by physical and chemical changes. What evidence might NOT indicate a chemical change?

Julie's lab group wants to know if a physical change occurs during an experiment. Which of the following does NOT indicate a physical change?

At what temperature does water freeze?

Liquid has a definite volume but not a definite ________.

Which of the following does NOT indicate a chemical change?

Which of the following is not a chemical change?

The law of ______ of mass states that in any physical or chemical change, matter is neither created nor destroyed.

Which of the following is not a physical change?

The form or appearance of matter is altered during a _____ change.

The mass of a substance before freezing was 450g. What is the mass after freezing?

Mrs. Adams' favorite vase had a mass of 50g. It broke! What is the mass of the broken pieces?

When the stopper is removed from a beaker filled with LIQUID, the liquid will flow out of the beaker.

When the stopper is removed from a beaker filled with GAS, the gas will flow out of the beaker.

You pour a liquid substance from a beaker into a graduated cylinder. How will the liquid behave once poured into the graduated cylinder?

Which properties do NOT provide evidence of a substance's state of matter?

Match the picture to the change of state.

Match the picture to the change of state.

Match the picture to the change of state.

Match the picture to the change of state.

Two identical water bottles have the same mass, but one of them breaks. After all the pieces are picked up from the broken bottle they are are weighed again. Which statement is true about the bottles?

Select all evidence that a physical change has occurred.

All energy in ecosystems starts with the ________.

True or False: Ecosystems change as a result of natural and human-influenced processes.

True or False: Matter is neither created nor destroyed in ecosystems.

A nonliving part of an ecosystem is a/an _______.

A set of overlapping food chains in an ecosystem is a _________.

Which of the following are examples of biotic factors?

A living part of an ecosystem is a/an _______.

The path that shows how energy and matter flow from one organism to another is a ________.

Organisms that must eat plants or other animals to get energy are called ______.

Organisms that make their own food using nonfood matter and energy from the sun are called ________.

Organisms that break down dead plant and animal material are called _______.

Which of the following are examples of abiotic factors?

Decomposers are important to ecosystems because they ________.

The cycling of matter in an ecosystem is important because ________.

All the living and nonliving things interacting in a particular area make up a/an ___________.

_________ are always the first link in a food chain, but the _______ is the original source of energy.

Which organism is a producer?

Which organism is a consumer?

Which organism is a decomposer?

Select all that apply: According to the partial food web, the mouse provides energy for the ________.

Which one is NOT a predator-prey relationship

Which half of the picture represents a community?

A rainforest will have ________ species of organisms than a desert because of factors like increased rainfall.

Based on your observations of this forest food web, which of the following correctly shows the flow of matter in a complete food chain?

There are more organisms living in an ecosystem in the summer than in the winter because during the summer there are ________ hours of daylight.

Which of the following would NOT be used in performing a solubility test?

Which of the following is a magnetic metal?

Particles of matter are too small to be seen with the naked eye (models can help in demonstrating).

Adding more solvent to a solution will ________________ the solution.

When a gas is formed due to a chemical change, it can be released into the air, causing the mass of the new substance to be less than its original parts.

Increasing the temperature of a substance will cause its particles to ______________________.

How would adding more solute to a solution affect the concentration of the solution?

The ________________________ states that matter cannot be made or destroyed, only transferred and changed.

Which of the following is an example of a physical change?

Which of the following is NOT evidence of a physical change?

To make a solution less concentrated means you are diluting the solution.

A solute is dissolved into a solvent to form a solution.

A _________________ has a definite shape and definite volume.

Mrs. Stringer is combining lemon juice and water. She has 40 g of water and 15 g of lemon juice. What will be the mass of the combined liquids?

A ___________________ can be described as a mixture in which one substance dissolves evenly into another.

Which of the following is an example of a chemical change?

Mrs. Walker has a solution (water and salt) with a mass of 75 g. The mass of the sugar is 13 g. What is the mass of the water?

Which of the following describes a physical property?

What would be the result of leaving a metal spoon in a pot of boiling water?

The Law of Conservation of Matter only applies to chemical changes.

What would be the best spoon choice for stirring boiling soup?

Due to the property of __________________, oil will float on top of water if poured in the same container.

Corn syrup has a density that is greater than water. Due to its density, the syrup will __________________ when poured in a container with water.

The smallest part of a compound that has the properties of the compound.

This physical property of matter is about how an object feels when you touch it.

_________ is how well heat and electricity move through a material. ________ are very good ___________.

Wood and rubber do NOT allow heat and electricity to pass through easily, so they are __________.

_______ is the property of a material that refers to how well it dissolves in another material.

Which of the following properties of matter can be observed using the senses?

Which of the following properties of matter can be measured using science tools?

Unknown substances can be identified by their properties. What properties of matter CANNOT be used to identify unknown substances?

Which of the following does NOT correctly show a property and its unit of measurement?

When the SAME kinds of atoms in a molecule combine in DIFFERENT amounts, or when you change the kinds of atoms in a molecule, _____________ are formed.

The SAME matter in DIFFERENT amounts will have _______ mass and volume.

True or False: All compounds are made up of molecules, but not all molecules are compounds.

Adding heat to matter causes its particles to move ________, but removing heat from matter causes its particles to move _________.

Which property of matter could not be used to identify the substances in the chart? Why wouldn't that property be helpful?

Some substances can changes states of matter. These changes generally occur because of changes in _______.

Our Sun and solar system are part of the __________________.

A ___________ is a group of between 1 million and 1 trillion stars.

The Sun's apparent ____________ (size and brightness) is due to its closeness to Earth.

The Sun's layers in order from innermost to outermost are:

The Sun's gravitational force keeps the planets, their moons, and other space objects in ______________.

True or False?

The Sun orbits the planets, and the planets orbit the moon.

We use telescopes because they objects appear ____________.

___________ are chunks of rock that orbit the Sun, but ___________ are chunks of rock, ice, and dust that have stretched out orbits around the Sun.

A planet's _____________ is one complete trip around the Sun and what determines the length of a planet's year. A planet's _________ is one complete spin on its axis and determines the length of a planet's day.

Which of the outer planets has the longest orbit?

Which of the following are characteristics of the inner planets?

The inner planets and outer planets are separated by ______________.

Which planet has a red surface color due to the high iron content of its soil?

Which planet rotates on its side?

Which planet is the largest and has a giant storm?

The outer planets are called "Gas Giants" because they are very large and because they are made up of gases such as _______________.

Uranus and Neptune appear to be a bluish color because of the _________ gas in their atmospheres.

Which planet is the hottest and is covered with volcanoes and canyons?

Which planet has the fastest revolution and shortest orbit?

What are the reasons for the seasons on Earth?

When objects remain in the same place, the forces acting on them are __________.

Force is measured in....

An unbalanced force causes objects to move in one direction because the force is greater from that direction.

Inertia is....

Which force always produces a change in motion?

If these boys are pulling with the same amount of force, what will happen?

An automobile you are riding in suddenly stops, why does your body continue to go forward?

If you push a tennis ball, a bowling ball, and a basketball with the same amount of force, which one will go farthest?

If a magician pulls a table cloth from under a table of dishes, what should happen based on Newton's 1st law?

It is much more difficult to move a dresser full of clothes than an empty dresser. Why is this the case according to Newton's 2nd Law of Motion?

What is Newton's First Law?

Pushing a child on a swing is harder than pushing an adult on the same swing.

The first law of motion says that a moving object tends to keep

If there was no friction or other force acting on an object in motion, then the object in motion would stay in motion forever.

Why is it harder to push a cart full of bricks than a cart full of feathers?

If one bumper car collides into another bumper car, what should occur according to Newton's Third Law of Motion?

What pulls objects toward Earth's center?

What exerts a gravitational force on other objects?

Does gravity exist in space?

True or False - Gravity causes stars to stay in their galaxies and planets and moon to stay in their orbits.

Night and day are caused by the ___________ of Earth on its axis.

Earth rotates on its axis every __________.

How many time zones are in the United States?

As Earth rotates on its axis, it also ____________ around the sun.

True or False - Earth's revolution around the sun affects the amount of daylight a location gets.

What causes Earth's seasons?

True or False - The Northern Hemisphere and the Southern Hemisphere have opposite seasons.

The moon revolves around Earth and also rotates. One complete rotation is about the same as one complete revolution which is how many days?

The moon does not have its own light but reflects the _____________.

True or False - The Moon's gravitational pull on Earth affects the surface levels of the ocean know as tides.

What causes the different phases of the moon?

What is the only other natural object in space, other than Earth, that humans have visited?

A constellation is a group of stars that form a _____________ in the sky.

What causes different constellations to appear at different times on Earth?

A ______________________ is a dark area or shape that is made when an object blocks a source of light.

True or False - As the sun appears to move across the sky in an arc, sunlight shines on objects at different angels. As a result, shadows change their size and direction during the day.