Material Changes Quiz

Which is an example of a change that results in a new material?

• melting wax

• cutting paper

• sawing wood

• exploding fireworks

Raymond was cleaning out his kitchen cupboards. He put a cast iron pan outside with his trash. A week later, he saw the pan had rusted. Which best describes what happened to the pan?

• Permanent change; the rust is new material that formed.

• Temporary change; the rust is new material that formed.

• Temporary change; the reaction was caused by a temperature change.

• Permanent change; the reaction was caused by a temperature change.

Libby mixed one cup of water with one tablespoon of salt. Why did the salt seem to disappear?

• The salt condensed.

• The salt evaporated.

• The salt changed into water.

• The salt dissolved in the water.

When baking soda is added to vinegar, bubbles form. Which is true about the bubbles?

• The bubbles are the vinegar.

• The bubbles are the baking soda.

• The bubbles are both the baking soda and vinegar.

• The bubbles are different from the baking soda and the vinegar.

Jenny poured the liquid in Beaker Y into the liquid in Beaker X. When she did, the liquid in Beaker X changed color. Which best explains this?

• The properties of the liquid in Beaker X remained the same.

• The properties of the liquid in Beaker Y remained the same.

• The liquid in Beaker Y combined with the liquid in Beaker X producing a new substance with new properties.

• The properties of the liquid in Beaker X remained the same while the properties of the liquid in Beaker Y changed.

Which would most likely result in a new substance being produced?

• tearing a newspaper

• breaking a glass

• baking a cake

• cutting bread

Susan is completing an experiment in science. She mixes 1 cup of hot water with 2 cups of salt. What will most likely happen to the substances?

• The substances will blend and their properties will be changed.

• The substances will not blend and their properties will be changed.

• The substances blend and form another liquid that appears as a solid.

• The substances will not blend and their properties will be the same as the individual substances.

Use the drop-down menus to complete the description of how the data collected could be used as evidence. If the data show that the properties of the substances change or stay the same when the substances are mixed together, then a new substance has formed or there must be less substances in the beaker or there must be more substances in the beaker. This is because all substances have unique or the same properties.

Which statement describes how to control a variable in this investigation?

• The number and amount of substances mixed in each experiment should vary.

• The amount of time it took to mix the substances in the experiment should vary.

• The substances that are combined in each experiment should be the same.

• The temperatures of the substances that are combined should be the same.

The students recorded the properties of the three substances in the beakers. The properties are recorded to help identify each substance. Select TWO questions that would be the most helpful for the students to ask when recording the data. Pick up to 5 answers.

• What is the odor of the baking soda in the experiment?

• What is the texture of the baking soda in the experiment?

• How many milliliters of vinegar are used in the experiment?

• How many grams of baking soda are used in the experiment?

• What is the number of trials that are performed in the experiment?