Tom came home from work and asked his wife for a cup of hot coffee. When he took a sip, the coffee burned his tongue. Several days later, when he asked his wife for a cup of coffee, he first touched the cup with his hands to feel how hot it was. He then left it on the table for a few minutes to let it cool. Which of these best explains why Tom didn't drink the coffee immediately?

A skunk uses its nose to smell a fox. The skunk is scared of the fox. When the fox gets near, the skunk lifts its tail and sprays the fox in the face with a liquid. The liquid has a very bad smell. The fox turns and runs away from the skunk.

Which of these describes a response of the skunk to sensory information processed by its brain?

When your eye sees a pencil, it sends a signal to your brain. Your brain then signals muscles in your hand and arm, and you can reach and pick up the pencil.

In the process that was described, which was a sensory receptor?

A circus performer was trying a new act of walking on a tightrope stretched between two poles. After a few practice sessions, he was able to do it perfectly. When he started performing the same act blindfolded, he lost his balance and fell down. Which of these best explains why he fell?

A father bought a new singing toy for his baby girl. When a button was pressed on the toy, a song began to play and the baby smiled. What movement caused the baby’s behavior?

When Jack was learning how to drive, he was taught about basic traffic rules. On the day of his driving test, he saw a traffic signal that turned from green to red. As soon as it turned red, Jack quickly applied the brakes. Which of these best explains Jack’s behavior?

Frogs find insects to eat because they can see insects move. The frogs then stick out their sticky tongues and catch the insects.

Which of the senses do frogs use the most when finding insects to eat?

Which system carries messages to and from different parts of the body?

Information about the world can be gained through the sense of touch. Which pathway correctly shows how touch information enters the body and is processed?

Meerkats, like the one shown in the picture, live in large family groups. To communicate, meerkats make loud calls that can have many different meanings. The animals often use these calls to warn their family members about nearby predators, such as snakes and hawks.

Which of the following senses is most important to meerkats when using calls to communicate?

Which physical feature helps a duck to swim?

Which part of a plant helps the most in its reproduction?

How do an eagle's talons help it survive?

The stomach and intestines are organs of the body system which _______.

What is the name of the organ pointed to by the arrow?

What system contains the heart and vessels and pumps blood throughout the body?

Your bones are part of your ________system.

______ allows in carbon dioxide and sunlight; where photosynthesis takes place

_____ attracts pollinators and controls reproduction for the plant

What system controls the body?

This organ is part of the _________ system that takes in oxygen and gets rid of carbon dioxide.

For animals in a cave, which sense would be the least helpful?

Catfish have taste buds all over their skin. This adaptation allows them to _____________.