Boiling is when liquids are heated above their boiling point, and lots of gas bubbles burst over the boiling lakes' surface. Given these facts, what happens when liquids are heated among the following options: - Evaporation - chemical reaction - air is cooled - food is chilled - It expands - gas bubbles burst - flow of electrons - bubbles reduce
gas bubbles burst

Ameasuring cup is used for measuring the volume of substances, and with a measuring cup, pour different amounts of water into each cup. Given these facts, what can determine the amount of water among the following options: - rainfall - streams. - the volume - streams - evaporation - Temperature - erosion - vaporization
the volume

Threatening behavior by predators causes a porcupine to extend its quills, and predators kill and eat their prey. Given these facts, what threat would cause a porcupine to extend its quills among the following options: - snow - killing insects - being eaten - wind - rain - threatened - sea urchins - opossums
being eaten