What do you do when you collect data and record data by observing?

• Offer an explanation

• Make a statement

• Plan a way of finding answers to your questions

• Use your senses to notice details

Tags

NGSS.3-PS2-2

Why do scientists use models to represent the natural world?

• To investigate things that are too big or small to observe

• To measure the actual size of objects around them

• To compare data about different people

• To organize data into rows and columns

Tags

NGSS.MS-LS2-3

Which metric tool would you use to measure the volume of liquid?

• A hand lens

• A graduated cylinder

• A pan balance

• A metric ruler

Jenna's science class is studying how heating and cooling can change matter. Which of the following is a correct condition where matter changes?

• Liquid water is cooled to form ice.

• Liquid water is cooled to turn into a gas.

• Solid water is cooled to turn into a gas.

• Gas is warmed to turn into ice.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which action will make a substance change its state of matter from liquid to solid?

• Ice cream left on the kitchen counter.

• Melted butter is put in the refrigerator.

• Bacon fat in a hot frying pan.

• Ice cube in a drink on a hot day.

Tags

NGSS.MS-PS1-4

Which of these is a gas?

• Frozen ice cream

• Milk in a glass

• Cake batter

• Steam from a kettle

Which of these examples demonstrates combining materials to produce a stronger, safer product?

• Orange peels, apple cores, and leaves are combined to make compost for growing more vegetables.

• Iron and carbon are mixed at high temperatures to make steel for a building cars.

• Coloring is combined with resins to make paint to protect a wooden fence from rotting.

• High heat is combined with sand and calcium carbonate to make clear glass.

Tags

NGSS.MS-ETS1-3

Which of these is an example of a change due to cooling?

• A puddle in direct sunlight disappears in a single day.

• An iceberg breaks off into the Atlantic Ocean and melts in the ocean water.

• Warm air blows over a mountain and melts the snow.

• Hot, molten lava pours out of a volcano, is exposed to air, and becomes solid rock.

Tags

NGSS.MS-PS1-4

Mr. Foyle's class is testing different substances to learn about their properties. Mr. Foyle asks if the students would suggest investigations that could be done in class. After listening to the suggestions, Mr. Foyle chooses the ideas of Kristie and Ty.

Kristie suggested testing the temperature of the floor, desks, whiteboard, and window using a . Ty wanted to test for the ______ of items in his backpack with a triple-beam balance. The class breaks into groups and runs the tests. Then, they compare their results.

• temperature

• length

• mass

• volume

Maria performs an experiment by testing to see if objects sink or float in water. Of the objects she tested, which ones floated in water?

• Metal paperclip

• Hollow plastic ball

• Magnet

• Pencil

Tags

NGSS.5-PS1-3