A beaker containing water is heated, and thermal energy is transferred through the water by convection. What happens to the water’s density when it is heated, and in what way does the water move?
- AThe density decreases and the heated water moves downwards.
- BThe density decreases and the heated water moves upwards.
- CThe density increases and the heated water moves downwards.
- DThe density increases and the heated water moves upwards.