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Questions in Grade Middle-school

[Homework Help] What conditions must be present for a material to dissolve in another material?

[Homework Help] 1. True or false: All matter on Earth contains thermal energy. 2. True or false: The molecules in frozen water are in motion. 3. True or false: Ice is too cold to have thermal energy. 4. Which way will heat flow when ice and water are combined in a glass?

[Homework Help] Find 33% of 90.

[Homework Help] Which leisure activities could lead to a career change? How?

[Homework Help] Melissa burned her hand on the stove. Why did running cold water over her hand make the burn less severe? A. Cold transferred to her hand from the water by convection. B. Cold transferred to her hand from the water by conduction. C. Heat transferred from her hand to the water by convection. D. Heat transferred from her hand to the water by conduction. --- A radiator is attached to a wall on one side of the room. What is the most likely way its heat will warm the air on the other side of the room? A. By conduction B. By convection C. The warm air will sink and condense D. The warm air will rise and condense --- Which of the following is an example of heat transfer by radiation? A. Wind currents B. A lightbulb giving off heat C. Barefoot on a hot sidewalk D. A microwave oven heating food

[Homework Help] A rectangle has an area of 30 square meters and a perimeter of 3 meters what are the dimension of the rectangle

[Homework Help] True or False? 1. Volcanoes can carve landforms, such as lakes and valleys, in a matter of hours. 2. The Hawaiian Islands were formed by volcanoes located at a plate boundary. 3. Molten lava solidifies and forms the core of the Earth.

[Homework Help] How was the Roman Republic formed?

[Homework Help] Maralah can drive her car 580 miles at a steady speed using 20 gallons of gasoline. Make a rate table showing the number of miles her car can be driven at this speed. Fill in the table for 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10 gallons of gas. | Gallons of Gas | Miles Driven | |----------------|--------------| | 1 | | | 2 | | | 3 | | | 4 | | | 5 | | | 6 | | | 7 | | | 8 | | | 9 | | | 10 | |

[Homework Help] What were the two names of the rivers in Southwest Asia?