Heat can only move one way. what way is that?

In a laboratory, nakisha mixes sodium hydroxide solution with an indicator called phenolphthalein. when combined, they create a pink solution. nakisha wonders if mixing other solutions with phenolphthalein will also create this pink color. how could she use the scientific inquiry process to explore it further?

Why don't you see your reflection in water with waves or repples

The coefficient of friction is a number that represents the resistance to sliding between two in contact with one another.