Let's solve the problems step by step:
---
Section 1: Vertebrates and Animals
1.
Vertebrates are animals with _______________.
-
Answer: backbones (or spinal columns)
2.
Mammals and ____________ are warm-blooded vertebrates.
-
Answer: birds
3.
I am cold-blooded, breathe through lungs, and have dry scaly skin. What am I?
-
Answer: reptile (e.g., snakes, lizards)
4.
I am a mammal but lay eggs. What am I?
-
Answer: platypus or echidna (monotremes)
5.
I live in water and can breathe underwater through gills.
-
Answer: fish
---
Section 2: Labeling Parts of the Plant
The plant diagram shows different parts that need to be labeled using the words provided: Fruit, Leaf, Flower, Root, Stem.
-
Top part (yellow structure): Flower
-
Red structures hanging from the plant: Fruit
-
Green structures attached to the stem: Leaf
-
Main vertical structure supporting the plant: Stem
-
Underground structures: Root
So the labels are:
- Top:
Flower
- Red structures:
Fruit
- Green structures:
Leaf
- Vertical structure:
Stem
- Underground:
Root
---
Section 3: Plant Growth and States of Matter
11.
To grow healthily, plants need air, water, nutrients, and _____________.
-
Answer: sunlight
12.
__________ have a fixed shape but (13) __________ take the shape of the container.
-
Answer for 12: solids
-
Answer for 13: liquids
14.
When a liquid is heated, it ____________ faster.
-
Answer: evaporates
15.
Water freezes at ____________ degrees Celsius.
-
Answer: 0
16.
Salt ____________ in water.
-
Answer: dissolves
17.
Stone is ____________ in water.
-
Answer: insoluble
18.
__________ is the best way to separate mixed buttons and paperclips.
-
Answer: magnetism (paperclips are magnetic, buttons are not)
19.
A ____________ is ideal to separate coffee from water.
-
Answer: filter
20.
A ____________ can be used to separate pins from buttons.
-
Answer: sieve (pins are smaller and will pass through, while buttons are larger and will stay behind)
---
Final Answers:
1.
backbones (or spinal columns)
2.
birds
3.
reptile
4.
platypus or echidna
5.
fish
6-10:
- Top:
Flower
- Red structures:
Fruit
- Green structures:
Leaf
- Vertical structure:
Stem
- Underground:
Root
11.
sunlight
12.
solids
13.
liquids
14.
evaporates
15.
0
16.
dissolves
17.
insoluble
18.
magnetism
19.
filter
20.
sieve
---
Boxed Final Answer:
\[
\boxed{
\text{backbones, birds, reptile, platypus or echidna, fish, Flower, Fruit, Leaf, Stem, Root, sunlight, solids, liquids, evaporates, 0, dissolves, insoluble, magnetism, filter, sieve}
}
\]
Parent Tip: Review the logic above to help your child master the concept of free worksheet for 4th grade science.
