Quarter 1 Review

Adrianna wanted to find out if the food she gave cats affected their weight. She filled one bowl with pizza, one cat food, and the other with hot dogs. She checked their weight weekly. What are her different variables?

Groups:

(a) Independent

,

(b) Dependent

,

(c) Control

• The bowls

• Type of food

• The type of cats

• The weight

• Starting weight of the cats

Answer explanation

INDEPENDENT "I change"

DEPENDENT "Data"

CONTROL "Things that stay the same"

Tags

NGSS.MS-LS2-1

Carlos is trying to see if juice makes his plants grow larger. He gives one plant water, one orange juice and one apple juice. What are the variables in his experiment?

Groups:

(a) Independent

,

(b) Dependent

,

(c) Control

• How tall the plant grows

• Type of plant

• Pot & soil

• Environment

• The juice

Answer explanation

INDEPENDENT "I change" DEPENDENT "Data" CONTROL "Things that stay the same"

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Bella wants to see if the pan that a cake is baked in makes it cook faster. She places one in a square pan, one in a circle pan and one in a triangle pan. She checks the oven every ten minutes to see if the cake is done. What is her dependent variable?

• The house

• The pan

• How fast the cake bakes

• The oven

Answer explanation

DEPENDENT "Data" It is what you are measuring!

Tags

NGSS.MS-ETS1-3

NGSS.MS-PS3-4

Bella wants to see if the pan that a cake is baked in makes it cook faster. She places one in a square pan, one in a circle pan and one in a triangle pan. She checks the oven every ten minutes to see if the cake is done. What are 2 control variables?

• The pan and the house

• The pan and the oven

• The house and the oven

• how fast the cake bakes and the house

Answer explanation

The house and the oven need to stay the same. How fast the cake bakes will change so that can't be a control. Also, the pan is what you are changing!

Chipmunks can survive outside if it is hot and if it is cold. Their internal body temperature will remain the same due to

• Sweating

• Condensation

• dehydration

• homeostasis

Answer explanation

Organisms must maintain a constant internal body temperature to stay alive and maintain HOMEOSTASIS or internal balance

An organism maintains​ (a)   which means a ​ (b)   internal environment.

• homeostasis
• balanced
• living
• autotroph

Answer explanation

HOMEOSTASIS means internal balance

Which 2 are an examples of characteristics all living things display?

• They are green

• They are made of one or more cells

• They move

• They breath

• They use energy

Answer explanation

All living things are not green. Not all living things can breath. All living things are not capable of movement.

However, all living things are made of one or more cells and need energy to do "work"

Tags

NGSS.MS-LS1-1

A ​ (a)   is a change in an organism's environment. It can be ​ (b)   (inside the organism) or ​ (c)   (outside the organism). An organism can also have a ​ (d)   which is their reaction.

• stimulus
• internal
• external
• response

Answer explanation

stimulus - change in an organism's environment

internal - inside

external - outside

response - reaction

It is cold outside (stimulus) so she shivers (response) this stimulus is external because it is on the outside of her body.

Tags

NGSS.MS-LS2-1

When you move a specimen on the microscope stage to the _____ it actually moves to the _____.

• Up

• Up

• Down

• Left

• Right

• Right

• Left

• Down

How would I bring the red specimen to the middle of the slide?

• Move it left

• Move it right

• Change the objective

• Use the focus knobs

Answer explanation

With a microscope the specimen moves opposite in the field of view.

If you move it left it moves right

If you move it right it moves left

If you move it up it moves down

If you move it down it moves up