grade 2 matter
What state of matter is milk?
What is liquid?
The temperature of milk in the refrigerator is 5 °C. The temperature of the kitchen is 22 °C. If the milk sits on the kitchen table for 30 minutes, what would its temperature most likely be?
What is any temperature between 5 and 22?
Hakim wants to measure the mass of his science book. Which of the following would be an appropriate unit for Hakim to use?
What is centimeters?
The window in Jordan’s room has a wood border around the edge and a clear glass pane in the center. Jordan touches the wood and the glass to compare their textures. What would Jordan most likely observe?
What is timber is rough and glass is smooth?
Water can change from one state to another. What happens when water changes states?
What is matter is not lost or gained?
What is matter?
What is anything with mass that takes up space?
Water changes state during evaporation and condensation. How is evaporation different from condensation?
What is during evaporation, water changes from a liquid to a gas. During condensation, water changes from a gas to a liquid?
Riley makes three balls out of modeling clay. He puts all of the clay balls on a balance and measures the total mass as 56 g. He then pushes the clay into one big ball and measures its mass. Which of the following would be a reasonable mass for the entire ball?
What is 56g?
Emily made flow charts to show the changes in states of water. In each, she listed the original state which is liquid water, the process that results in a change in state, and the resulting state which is gas. What process did Emily experience in her experiment?
What is evaporation?
A block of wood, a ball of aluminum foil, a block of stone, and a block of clay all have the same volume. Which of these has the greatest density: aluminum, clay, stone, or wood?
What is stone?
Shane has some ice cubes in a glass. What state of matter are the ice cubes?
What is solid?
A glass is about half full of milk. Dan wants to measure the volume of the milk in the glass. Which of the following should Dan: balance, graduated cylinder, ruler, any glass?
Emily finds a rock outside her house. She wonders if the rock is magnetic. How would she know if the rock was magnetic?
What is the rock would attract metal objects?
DeShawn is getting a new fish tank ready for the fish he plans to buy. He has to dissolve salt crystals in the water. What would be the best thing to do to help the crystals dissolve quickly?
What is crush into small pieces?
When wood burns in a fireplace, the ashes are left. The gases escape up the chimney. Suppose you could trap the gases. What would you find about the mass of the wood compared to the ashes and gas?
What is the the same mass of wood as the ashes and gases supports the law of conservation of mass?
How does a sponge change when you wet it?
What is it fills with water and gets softer?
The table below lists objects you might find at home. Which of the following is the best way to group the objects?
Object: marker, corn oil, pencil, milk, chalk, water
What is by liquid or solid?
Chemical changes occur when the molecules of one substance are rearranged to form a different substance. Which of the following is a chemical change: bending, burning, freezing, or shredding?
What is burning?
Nadia has a mixture of oil and water. She wants to separate the mixture. How can she do this?
What is let oil float to the top and remove?
Matter may be a gas, solid, or liquid. It can change from one state to another. Which change most often causes matter to change state?
What is a change in temperature?
What physical property changes by cutting?
What is size or shape?
A puddle of water has formed on a sidewalk. The temperature outside is 10 °C. What will happen to the water when the temperature drops to –0 °C and below?
What is freeze?
A change in color or smell is a sign of what?
What is a chemical change?
Jacob put yeast into two bowls of water and added a little sugar to each bowl. He put one bowl in a warm place and the other bowl into the refrigerator. After a while, Jacob observed tan-colored foam spilling over the sides of the warm bowl. What kind of change is this?
What is a chemical change?
Ava put water, sugar, and yeast into a balloon. Then she put the balloon into a pan of warm water and observed how the balloon changed. Next, Matthew repeated the investigation with another balloon. What is the best reason for Matthew to repeat it?
What is validity or the data?