STAAR REVIEW

How many Oxygen (O) atoms are in this formula?

• 4
• 1
• 8

The bunnies below have the same two parents. Why do they look different?

• They each inherited a different gene combination due to sexual reproduction
• They share the same exact genetic make-up
• They are identical clones
• They are formed from asexual reproduction

A rock is sitting on the ground. This rock is motionless because

• there are no forces acting up on it
• the forces acting upon the rock are balanced
• the forces acting upon the rock are unbalanced

As the roller coaster car travels down the hill

• kinetic energy increases and potential energy decreases
• kinetic energy decreases and potential energy increases

When a person eats a sandwich, and then rides their bike - they are converting

• kinetic energy to chemical potential energy
• chemical potential energy to kinetic energy

Which of the following is a CHEMICAL reaction?

• Chopping wood
• Stomach digesting food
• Drawing with chalk
• Sharpening a pencil

Which of the following is an example of a chemical reaction?

• Fireworks turning colors in the sky
• Water evaporating
• Ice melting
• Rock breaking

When a person hits a ball with a bat, according to Newton's 3rd Law, what other force is taking place?

• The ball hits the ground with the same force
• the ball hits the bat with an opposite and equal force
• the bat pushes back on the hitters hand
• the ball will apply twice the force on the air

A grocery cart is pushed with a force of 30 newtons. It has a mass of 10 grams. What is acceleration of the cart?

(a)  

How many atoms are in glucose?

• 6
• 12
• 18
• 24