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How many elements are there?
What is 118?
What is the smallest building block of matter?
What are Atoms?
How many made up elements are there?
26
Is milk heterogeneous or homogeneous?
What is homogeneous?
When a wave is absorbed by matter, the energy of the matter _______ and the energy of the wave _______. As a result, the wave's amplitude _______.
Increases, Decreases, Decreases.
Which are phase changes? Gases. Reaction. Sublimation. Melting.
What are sublimation and melting?
Select all the examples of transmission. Light wave bounces off a mirror. A wave passes through a guitar string. A sound wave travels through air. A wave moves through the spring toy.
A wave passes through a guitar string. A sound wave travels through air. A wave moves through the spring toy.
Which is true about echolocation? They use it to see where they are going. To hunt for food at night. To defend against predators. To locate safe places to hide
What is To hunt for food at night and To defend against predators
Select the one mixture. Carbon. Silicon. Cake Batter
Cake Batter
What is decibel?
What is how loud something is