What happens to a shirt when you iron it? a. It changes color b. It becomes a new type of matter c. It changes texture d. It changes into a liquid, c. It changes texture, Which of these actions is not a physical change? a. Shredding paper b. Chopping a carrot c. Tearing paper d. Baking a cake , d. Baking a cake, When melted butter cools down in a refrigerator, it: a. Evaporates b. Burns c. Freezes d. Condenses, c. Freezes, Which of the following changes is one that cannot be undone? a. Melting chocolate b. Folding a towel c. Rusting metal d. Boiling water , c. Rusting metal, What is the process called when some gases cool and turn into liquids? a. Freezing b. Melting c. Evaporation d. Condensation , d. Condensation, Which action creates a new substance that cannot be undone? a. Breaking a piece of chalk b. Melting butter c. Frying an egg d. Cutting paper with scissors , b. Frying an egg, A bowl of cereal with milk is an example of a: a. Pure substance b. New type of matter c. Mixture d. Solution, c. Mixture, When you break a piece of chalk, what property changes? a. Color b. Smell c. Size d. Texture, c. Size, Which of these mixtures can be separated using a colander? a. Coffee and grounds b. Lemonade (lemon juice, water, sugar) c. Sand and stones d. Cereal and milk , c. Sand and stones, What happens when heat is added to chocolate? a. It freezes b. It evaporates c. It becomes new matter d. It melts, b. melts, Melting and ____________ are changing processes that can be ____________ in the state of matter. , freezing, undone , Heating can make matter change ____________ or ____________. , shape, state , A bowl of cereal and milk is a ____________. , mixture , To make lemonade, we mix ____________, ____________, and ____________. , lemon juice, water, sugar , Cooling water causes it to become solid, such as ____________. , ice , The change when wood burns into ____________ cannot be ____________. , ashes, undone , A mixture is any ____________ of two or more ____________ that can be ____________ separated. , combination, substances, physically , The process shown when water drops appear on the outside of a cold glass is called ____________. , condensation , Mixtures can involve any of the states of ____________. , matter , The process of clothes drying in the sun involves ____________., evaporation, Chopping wood is a physical change. , True , Mixtures always make new matter. , False , Cooking an egg is considered a physical change. , False , When heat is removed, matter becomes warmer. , False , Pineapple juice turning into ice is one example of matter changing its state. , True , Cooling melted butter turns it solid again. , True , In a mixture, the pieces lose their own special properties. , False , You can use a magnet to separate metal objects from sand. , True , A change in color is always a sign of a new type of matter being made. , False , Freezing water and boiling water are both physical changes., True, Explain what happens when you cut an apple and leave it open. Is this change reversible? , The apple's color changes (it turns brown) because the air makes it change. This change cannot be undone, What happens when you add heat to a candle? Describe two changes that occur. , The candle gets shorter because the wax melts and some of the wax burns away. Wax burning and forming smoke is also mentioned., List three physical properties of a piece of crumpled paper. , Texture (rough and wrinkled) , Shape (changes from flat to ball-like) , Size (may look smaller, but the amount is the same) , Thickness (feels thicker in folded parts) , Sound (makes a crunchy sound)., Name two different appliances/objects that are sources of heat at home and write their function. , , Define a mixture. Give one example of a mixture and state the best way to separate it. , A mixture is any combination of two or more substances (materials) that can be physically separated : (Cereal and Milk), (Sand and Stones, Explain the difference between a change that can be undone and a change that cannot be undone, providing one example of each from the provided materials. , , A sheet of paper is torn and then folded. Why is this only a physical change? , It is a physical change because the paper is still paper, and the change only affects its shape and size, with no new type of matter being made., When some water turns into ice, what change in state has occurred? When does this change happen? , The change in state that has occurred is freezing. This happens when water is cooled., Describe the process of condensation using the example of a cold glass on a table. , When you leave a cold glass on the table, water vapor (a gas in the air) cools down when it touches the glass and changes into liquid water drops. This process is called Condensation., How is baking bread dough in an oven different from simply boiling water? Focus on the resulting matter., Boiling water is a physical change that can be undone. The water changes state from liquid to gas (steam), but it is still water. Baking bread dough is a change that cannot be undone because a new type of food (bread) is made..

2nd Sci Changing matters

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